Input: evdev - consolidate compat and regular code
Compat and normal code mirror each other and are hard to maintain. When EV_SW was added compat_ioctl case was missed. Here is my attempt at consolidating the code. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov
parent
e4f5c82a92
commit
3a51f7c404
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@ -146,6 +146,7 @@ static int evdev_open(struct inode * inode, struct file * file)
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}
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#ifdef CONFIG_COMPAT
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struct input_event_compat {
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struct compat_timeval time;
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__u16 type;
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@ -165,22 +166,80 @@ struct input_event_compat {
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# define COMPAT_TEST test_thread_flag(TIF_32BIT)
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#endif
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static ssize_t evdev_write_compat(struct file * file, const char __user * buffer, size_t count, loff_t *ppos)
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static inline size_t evdev_event_size(void)
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{
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struct evdev_list *list = file->private_data;
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struct input_event_compat event;
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int retval = 0;
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return COMPAT_TEST ?
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sizeof(struct input_event_compat) : sizeof(struct input_event);
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}
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while (retval < count) {
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if (copy_from_user(&event, buffer + retval, sizeof(struct input_event_compat)))
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static int evdev_event_from_user(const char __user *buffer, struct input_event *event)
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{
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if (COMPAT_TEST) {
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struct input_event_compat compat_event;
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if (copy_from_user(&compat_event, buffer, sizeof(struct input_event_compat)))
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return -EFAULT;
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event->time.tv_sec = compat_event.time.tv_sec;
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event->time.tv_usec = compat_event.time.tv_usec;
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event->type = compat_event.type;
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event->code = compat_event.code;
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event->value = compat_event.value;
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} else {
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if (copy_from_user(event, buffer, sizeof(struct input_event)))
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return -EFAULT;
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input_event(list->evdev->handle.dev, event.type, event.code, event.value);
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retval += sizeof(struct input_event_compat);
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}
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return retval;
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return 0;
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}
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#endif
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static int evdev_event_to_user(char __user *buffer, const struct input_event *event)
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{
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if (COMPAT_TEST) {
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struct input_event_compat compat_event;
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compat_event.time.tv_sec = event->time.tv_sec;
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compat_event.time.tv_usec = event->time.tv_usec;
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compat_event.type = event->type;
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compat_event.code = event->code;
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compat_event.value = event->value;
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if (copy_to_user(buffer, &compat_event, sizeof(struct input_event_compat)))
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return -EFAULT;
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} else {
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if (copy_to_user(buffer, event, sizeof(struct input_event)))
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return -EFAULT;
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}
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return 0;
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}
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#else
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static inline size_t evdev_event_size(void)
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{
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return sizeof(struct input_event);
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}
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static int evdev_event_from_user(const char __user *buffer, struct input_event *event)
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{
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if (copy_from_user(event, buffer, sizeof(struct input_event)))
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return -EFAULT;
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return 0;
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}
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static int evdev_event_to_user(char __user *buffer, const struct input_event *event)
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{
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if (copy_to_user(buffer, event, sizeof(struct input_event)))
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return -EFAULT;
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return 0;
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}
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#endif /* CONFIG_COMPAT */
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static ssize_t evdev_write(struct file * file, const char __user * buffer, size_t count, loff_t *ppos)
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{
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@ -188,75 +247,26 @@ static ssize_t evdev_write(struct file * file, const char __user * buffer, size_
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struct input_event event;
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int retval = 0;
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if (!list->evdev->exist) return -ENODEV;
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#ifdef CONFIG_COMPAT
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if (COMPAT_TEST)
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return evdev_write_compat(file, buffer, count, ppos);
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#endif
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while (retval < count) {
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if (copy_from_user(&event, buffer + retval, sizeof(struct input_event)))
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return -EFAULT;
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input_event(list->evdev->handle.dev, event.type, event.code, event.value);
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retval += sizeof(struct input_event);
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}
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return retval;
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}
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#ifdef CONFIG_COMPAT
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static ssize_t evdev_read_compat(struct file * file, char __user * buffer, size_t count, loff_t *ppos)
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{
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struct evdev_list *list = file->private_data;
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int retval;
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if (count < sizeof(struct input_event_compat))
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return -EINVAL;
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if (list->head == list->tail && list->evdev->exist && (file->f_flags & O_NONBLOCK))
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return -EAGAIN;
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retval = wait_event_interruptible(list->evdev->wait,
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list->head != list->tail || (!list->evdev->exist));
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if (retval)
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return retval;
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if (!list->evdev->exist)
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return -ENODEV;
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while (list->head != list->tail && retval + sizeof(struct input_event_compat) <= count) {
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struct input_event *event = (struct input_event *) list->buffer + list->tail;
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struct input_event_compat event_compat;
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event_compat.time.tv_sec = event->time.tv_sec;
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event_compat.time.tv_usec = event->time.tv_usec;
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event_compat.type = event->type;
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event_compat.code = event->code;
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event_compat.value = event->value;
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while (retval < count) {
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if (copy_to_user(buffer + retval, &event_compat,
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sizeof(struct input_event_compat))) return -EFAULT;
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list->tail = (list->tail + 1) & (EVDEV_BUFFER_SIZE - 1);
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retval += sizeof(struct input_event_compat);
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if (evdev_event_from_user(buffer + retval, &event))
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return -EFAULT;
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input_event(list->evdev->handle.dev, event.type, event.code, event.value);
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retval += evdev_event_size();
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}
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return retval;
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}
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#endif
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static ssize_t evdev_read(struct file * file, char __user * buffer, size_t count, loff_t *ppos)
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{
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struct evdev_list *list = file->private_data;
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int retval;
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#ifdef CONFIG_COMPAT
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if (COMPAT_TEST)
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return evdev_read_compat(file, buffer, count, ppos);
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#endif
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if (count < sizeof(struct input_event))
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if (count < evdev_event_size())
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return -EINVAL;
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if (list->head == list->tail && list->evdev->exist && (file->f_flags & O_NONBLOCK))
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@ -271,11 +281,15 @@ static ssize_t evdev_read(struct file * file, char __user * buffer, size_t count
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if (!list->evdev->exist)
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return -ENODEV;
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while (list->head != list->tail && retval + sizeof(struct input_event) <= count) {
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if (copy_to_user(buffer + retval, list->buffer + list->tail,
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sizeof(struct input_event))) return -EFAULT;
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while (list->head != list->tail && retval + evdev_event_size() <= count) {
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struct input_event *event = (struct input_event *) list->buffer + list->tail;
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if (evdev_event_to_user(buffer + retval, event))
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return -EFAULT;
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list->tail = (list->tail + 1) & (EVDEV_BUFFER_SIZE - 1);
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retval += sizeof(struct input_event);
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retval += evdev_event_size();
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}
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return retval;
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@ -290,17 +304,95 @@ static unsigned int evdev_poll(struct file *file, poll_table *wait)
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(list->evdev->exist ? 0 : (POLLHUP | POLLERR));
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}
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static long evdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
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#ifdef CONFIG_COMPAT
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#define BITS_PER_LONG_COMPAT (sizeof(compat_long_t) * 8)
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#define NBITS_COMPAT(x) ((((x) - 1) / BITS_PER_LONG_COMPAT) + 1)
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#ifdef __BIG_ENDIAN
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static int bits_to_user(unsigned long *bits, unsigned int maxbit,
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unsigned int maxlen, void __user *p, int compat)
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{
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int len, i;
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if (compat) {
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len = NBITS_COMPAT(maxbit) * sizeof(compat_long_t);
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if (len < maxlen)
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len = maxlen;
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for (i = 0; i < len / sizeof(compat_long_t); i++)
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if (copy_to_user((compat_long_t __user *) p + i,
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(compat_long_t *) bits +
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i + 1 - ((i % 2) << 1),
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sizeof(compat_long_t)))
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return -EFAULT;
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} else {
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len = NBITS(maxbit) * sizeof(long);
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if (len > maxlen)
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len = maxlen;
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if (copy_to_user(p, bits, len))
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return -EFAULT;
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}
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return len;
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}
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#else
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static int bits_to_user(unsigned long *bits, unsigned int maxbit,
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unsigned int maxlen, void __user *p, int compat)
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{
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int len = compat ?
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NBITS_COMPAT(maxbit) * sizeof(compat_long_t) :
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NBITS(maxbit) * sizeof(long);
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if (len > maxlen)
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len = maxlen;
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return copy_to_user(p, bits, len) ? -EFAULT : len;
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}
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#endif /* __BIG_ENDIAN */
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#else
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static int bits_to_user(unsigned long *bits, unsigned int maxbit,
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unsigned int maxlen, void __user *p, int compat)
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{
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int len = NBITS(maxbit) * sizeof(long);
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if (len > maxlen)
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len = maxlen;
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return copy_to_user(p, bits, len) ? -EFAULT : len;
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}
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#endif /* CONFIG_COMPAT */
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static int str_to_user(const char *str, unsigned int maxlen, void __user *p)
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{
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int len;
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if (!str)
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return -ENOENT;
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len = strlen(str) + 1;
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if (len > maxlen)
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len = maxlen;
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return copy_to_user(p, str, len) ? -EFAULT : len;
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}
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static long evdev_ioctl_handler(struct file *file, unsigned int cmd,
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void __user *p, int compat_mode)
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{
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struct evdev_list *list = file->private_data;
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struct evdev *evdev = list->evdev;
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struct input_dev *dev = evdev->handle.dev;
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struct input_absinfo abs;
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void __user *p = (void __user *)arg;
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int __user *ip = (int __user *)arg;
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int __user *ip = (int __user *)p;
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int i, t, u, v;
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if (!evdev->exist) return -ENODEV;
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if (!evdev->exist)
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return -ENODEV;
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switch (cmd) {
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@ -308,26 +400,39 @@ static long evdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
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return put_user(EV_VERSION, ip);
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case EVIOCGID:
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return copy_to_user(p, &dev->id, sizeof(struct input_id)) ? -EFAULT : 0;
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if (copy_to_user(p, &dev->id, sizeof(struct input_id)))
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return -EFAULT;
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return 0;
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case EVIOCGKEYCODE:
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if (get_user(t, ip)) return -EFAULT;
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if (t < 0 || t >= dev->keycodemax || !dev->keycodesize) return -EINVAL;
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if (put_user(INPUT_KEYCODE(dev, t), ip + 1)) return -EFAULT;
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if (get_user(t, ip))
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return -EFAULT;
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if (t < 0 || t >= dev->keycodemax || !dev->keycodesize)
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return -EINVAL;
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if (put_user(INPUT_KEYCODE(dev, t), ip + 1))
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return -EFAULT;
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return 0;
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case EVIOCSKEYCODE:
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if (get_user(t, ip)) return -EFAULT;
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if (t < 0 || t >= dev->keycodemax || !dev->keycodesize) return -EINVAL;
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if (get_user(v, ip + 1)) return -EFAULT;
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if (v < 0 || v > KEY_MAX) return -EINVAL;
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if (dev->keycodesize < sizeof(v) && (v >> (dev->keycodesize * 8))) return -EINVAL;
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if (get_user(t, ip))
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return -EFAULT;
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if (t < 0 || t >= dev->keycodemax || !dev->keycodesize)
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return -EINVAL;
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if (get_user(v, ip + 1))
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return -EFAULT;
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if (v < 0 || v > KEY_MAX)
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return -EINVAL;
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if (dev->keycodesize < sizeof(v) && (v >> (dev->keycodesize * 8)))
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return -EINVAL;
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u = SET_INPUT_KEYCODE(dev, t, v);
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clear_bit(u, dev->keybit);
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set_bit(v, dev->keybit);
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for (i = 0; i < dev->keycodemax; i++)
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if (INPUT_KEYCODE(dev,i) == u)
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if (INPUT_KEYCODE(dev, i) == u)
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set_bit(u, dev->keybit);
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return 0;
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case EVIOCSFF:
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@ -338,17 +443,17 @@ static long evdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
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if (copy_from_user(&effect, p, sizeof(effect)))
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return -EFAULT;
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err = dev->upload_effect(dev, &effect);
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if (put_user(effect.id, &(((struct ff_effect __user *)arg)->id)))
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if (put_user(effect.id, &(((struct ff_effect __user *)p)->id)))
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return -EFAULT;
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return err;
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}
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else return -ENOSYS;
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} else
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return -ENOSYS;
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case EVIOCRMFF:
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if (dev->erase_effect) {
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return dev->erase_effect(dev, (int)arg);
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}
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else return -ENOSYS;
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if (!dev->erase_effect)
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return -ENOSYS;
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return dev->erase_effect(dev, (int)(unsigned long) p);
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case EVIOCGEFFECTS:
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if (put_user(dev->ff_effects_max, ip))
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@ -356,7 +461,7 @@ static long evdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
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return 0;
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case EVIOCGRAB:
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if (arg) {
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if (p) {
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if (evdev->grab)
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return -EBUSY;
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if (input_grab_device(&evdev->handle))
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@ -395,62 +500,33 @@ static long evdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
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case EV_SW: bits = dev->swbit; len = SW_MAX; break;
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default: return -EINVAL;
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}
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len = NBITS(len) * sizeof(long);
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if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
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return copy_to_user(p, bits, len) ? -EFAULT : len;
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return bits_to_user(bits, len, _IOC_SIZE(cmd), p, compat_mode);
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}
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if (_IOC_NR(cmd) == _IOC_NR(EVIOCGKEY(0))) {
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int len;
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len = NBITS(KEY_MAX) * sizeof(long);
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if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
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return copy_to_user(p, dev->key, len) ? -EFAULT : len;
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}
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if (_IOC_NR(cmd) == _IOC_NR(EVIOCGKEY(0)))
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return bits_to_user(dev->key, KEY_MAX, _IOC_SIZE(cmd),
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p, compat_mode);
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if (_IOC_NR(cmd) == _IOC_NR(EVIOCGLED(0))) {
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int len;
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len = NBITS(LED_MAX) * sizeof(long);
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if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
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return copy_to_user(p, dev->led, len) ? -EFAULT : len;
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}
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if (_IOC_NR(cmd) == _IOC_NR(EVIOCGLED(0)))
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return bits_to_user(dev->led, LED_MAX, _IOC_SIZE(cmd),
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p, compat_mode);
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if (_IOC_NR(cmd) == _IOC_NR(EVIOCGSND(0))) {
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int len;
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len = NBITS(SND_MAX) * sizeof(long);
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if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
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return copy_to_user(p, dev->snd, len) ? -EFAULT : len;
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}
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if (_IOC_NR(cmd) == _IOC_NR(EVIOCGSND(0)))
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return bits_to_user(dev->snd, SND_MAX, _IOC_SIZE(cmd),
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p, compat_mode);
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if (_IOC_NR(cmd) == _IOC_NR(EVIOCGSW(0))) {
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int len;
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len = NBITS(SW_MAX) * sizeof(long);
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if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
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return copy_to_user(p, dev->sw, len) ? -EFAULT : len;
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}
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if (_IOC_NR(cmd) == _IOC_NR(EVIOCGSW(0)))
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return bits_to_user(dev->sw, SW_MAX, _IOC_SIZE(cmd),
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p, compat_mode);
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if (_IOC_NR(cmd) == _IOC_NR(EVIOCGNAME(0))) {
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int len;
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if (!dev->name) return -ENOENT;
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len = strlen(dev->name) + 1;
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if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
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return copy_to_user(p, dev->name, len) ? -EFAULT : len;
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}
|
||||
if (_IOC_NR(cmd) == _IOC_NR(EVIOCGNAME(0)))
|
||||
return str_to_user(dev->name, _IOC_SIZE(cmd), p);
|
||||
|
||||
if (_IOC_NR(cmd) == _IOC_NR(EVIOCGPHYS(0))) {
|
||||
int len;
|
||||
if (!dev->phys) return -ENOENT;
|
||||
len = strlen(dev->phys) + 1;
|
||||
if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
|
||||
return copy_to_user(p, dev->phys, len) ? -EFAULT : len;
|
||||
}
|
||||
if (_IOC_NR(cmd) == _IOC_NR(EVIOCGPHYS(0)))
|
||||
return str_to_user(dev->phys, _IOC_SIZE(cmd), p);
|
||||
|
||||
if (_IOC_NR(cmd) == _IOC_NR(EVIOCGUNIQ(0))) {
|
||||
int len;
|
||||
if (!dev->uniq) return -ENOENT;
|
||||
len = strlen(dev->uniq) + 1;
|
||||
if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
|
||||
return copy_to_user(p, dev->uniq, len) ? -EFAULT : len;
|
||||
}
|
||||
if (_IOC_NR(cmd) == _IOC_NR(EVIOCGUNIQ(0)))
|
||||
return str_to_user(dev->uniq, _IOC_SIZE(cmd), p);
|
||||
|
||||
if ((_IOC_NR(cmd) & ~ABS_MAX) == _IOC_NR(EVIOCGABS(0))) {
|
||||
|
||||
|
|
@ -492,158 +568,15 @@ static long evdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
|
|||
return -EINVAL;
|
||||
}
|
||||
|
||||
static long evdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
|
||||
{
|
||||
return evdev_ioctl_handler(file, cmd, (void __user *)arg, 0);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_COMPAT
|
||||
|
||||
#define BITS_PER_LONG_COMPAT (sizeof(compat_long_t) * 8)
|
||||
#define NBITS_COMPAT(x) ((((x)-1)/BITS_PER_LONG_COMPAT)+1)
|
||||
#define OFF_COMPAT(x) ((x)%BITS_PER_LONG_COMPAT)
|
||||
#define BIT_COMPAT(x) (1UL<<OFF_COMPAT(x))
|
||||
#define LONG_COMPAT(x) ((x)/BITS_PER_LONG_COMPAT)
|
||||
#define test_bit_compat(bit, array) ((array[LONG_COMPAT(bit)] >> OFF_COMPAT(bit)) & 1)
|
||||
|
||||
#ifdef __BIG_ENDIAN
|
||||
#define bit_to_user(bit, max) \
|
||||
do { \
|
||||
int i; \
|
||||
int len = NBITS_COMPAT((max)) * sizeof(compat_long_t); \
|
||||
if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd); \
|
||||
for (i = 0; i < len / sizeof(compat_long_t); i++) \
|
||||
if (copy_to_user((compat_long_t __user *) p + i, \
|
||||
(compat_long_t*) (bit) + i + 1 - ((i % 2) << 1), \
|
||||
sizeof(compat_long_t))) \
|
||||
return -EFAULT; \
|
||||
return len; \
|
||||
} while (0)
|
||||
#else
|
||||
#define bit_to_user(bit, max) \
|
||||
do { \
|
||||
int len = NBITS_COMPAT((max)) * sizeof(compat_long_t); \
|
||||
if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd); \
|
||||
return copy_to_user(p, (bit), len) ? -EFAULT : len; \
|
||||
} while (0)
|
||||
#endif
|
||||
|
||||
static long evdev_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
|
||||
{
|
||||
struct evdev_list *list = file->private_data;
|
||||
struct evdev *evdev = list->evdev;
|
||||
struct input_dev *dev = evdev->handle.dev;
|
||||
struct input_absinfo abs;
|
||||
void __user *p = compat_ptr(arg);
|
||||
|
||||
if (!evdev->exist) return -ENODEV;
|
||||
|
||||
switch (cmd) {
|
||||
|
||||
case EVIOCGVERSION:
|
||||
case EVIOCGID:
|
||||
case EVIOCGKEYCODE:
|
||||
case EVIOCSKEYCODE:
|
||||
case EVIOCSFF:
|
||||
case EVIOCRMFF:
|
||||
case EVIOCGEFFECTS:
|
||||
case EVIOCGRAB:
|
||||
return evdev_ioctl(file, cmd, (unsigned long) p);
|
||||
|
||||
default:
|
||||
|
||||
if (_IOC_TYPE(cmd) != 'E')
|
||||
return -EINVAL;
|
||||
|
||||
if (_IOC_DIR(cmd) == _IOC_READ) {
|
||||
|
||||
if ((_IOC_NR(cmd) & ~EV_MAX) == _IOC_NR(EVIOCGBIT(0,0))) {
|
||||
long *bits;
|
||||
int max;
|
||||
|
||||
switch (_IOC_NR(cmd) & EV_MAX) {
|
||||
case 0: bits = dev->evbit; max = EV_MAX; break;
|
||||
case EV_KEY: bits = dev->keybit; max = KEY_MAX; break;
|
||||
case EV_REL: bits = dev->relbit; max = REL_MAX; break;
|
||||
case EV_ABS: bits = dev->absbit; max = ABS_MAX; break;
|
||||
case EV_MSC: bits = dev->mscbit; max = MSC_MAX; break;
|
||||
case EV_LED: bits = dev->ledbit; max = LED_MAX; break;
|
||||
case EV_SND: bits = dev->sndbit; max = SND_MAX; break;
|
||||
case EV_FF: bits = dev->ffbit; max = FF_MAX; break;
|
||||
case EV_SW: bits = dev->swbit; max = SW_MAX; break;
|
||||
default: return -EINVAL;
|
||||
}
|
||||
bit_to_user(bits, max);
|
||||
}
|
||||
|
||||
if (_IOC_NR(cmd) == _IOC_NR(EVIOCGKEY(0)))
|
||||
bit_to_user(dev->key, KEY_MAX);
|
||||
|
||||
if (_IOC_NR(cmd) == _IOC_NR(EVIOCGLED(0)))
|
||||
bit_to_user(dev->led, LED_MAX);
|
||||
|
||||
if (_IOC_NR(cmd) == _IOC_NR(EVIOCGSND(0)))
|
||||
bit_to_user(dev->snd, SND_MAX);
|
||||
|
||||
if (_IOC_NR(cmd) == _IOC_NR(EVIOCGSW(0)))
|
||||
bit_to_user(dev->sw, SW_MAX);
|
||||
|
||||
if (_IOC_NR(cmd) == _IOC_NR(EVIOCGNAME(0))) {
|
||||
int len;
|
||||
if (!dev->name) return -ENOENT;
|
||||
len = strlen(dev->name) + 1;
|
||||
if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
|
||||
return copy_to_user(p, dev->name, len) ? -EFAULT : len;
|
||||
}
|
||||
|
||||
if (_IOC_NR(cmd) == _IOC_NR(EVIOCGPHYS(0))) {
|
||||
int len;
|
||||
if (!dev->phys) return -ENOENT;
|
||||
len = strlen(dev->phys) + 1;
|
||||
if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
|
||||
return copy_to_user(p, dev->phys, len) ? -EFAULT : len;
|
||||
}
|
||||
|
||||
if (_IOC_NR(cmd) == _IOC_NR(EVIOCGUNIQ(0))) {
|
||||
int len;
|
||||
if (!dev->uniq) return -ENOENT;
|
||||
len = strlen(dev->uniq) + 1;
|
||||
if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
|
||||
return copy_to_user(p, dev->uniq, len) ? -EFAULT : len;
|
||||
}
|
||||
|
||||
if ((_IOC_NR(cmd) & ~ABS_MAX) == _IOC_NR(EVIOCGABS(0))) {
|
||||
|
||||
int t = _IOC_NR(cmd) & ABS_MAX;
|
||||
|
||||
abs.value = dev->abs[t];
|
||||
abs.minimum = dev->absmin[t];
|
||||
abs.maximum = dev->absmax[t];
|
||||
abs.fuzz = dev->absfuzz[t];
|
||||
abs.flat = dev->absflat[t];
|
||||
|
||||
if (copy_to_user(p, &abs, sizeof(struct input_absinfo)))
|
||||
return -EFAULT;
|
||||
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
if (_IOC_DIR(cmd) == _IOC_WRITE) {
|
||||
|
||||
if ((_IOC_NR(cmd) & ~ABS_MAX) == _IOC_NR(EVIOCSABS(0))) {
|
||||
|
||||
int t = _IOC_NR(cmd) & ABS_MAX;
|
||||
|
||||
if (copy_from_user(&abs, p, sizeof(struct input_absinfo)))
|
||||
return -EFAULT;
|
||||
|
||||
dev->abs[t] = abs.value;
|
||||
dev->absmin[t] = abs.minimum;
|
||||
dev->absmax[t] = abs.maximum;
|
||||
dev->absfuzz[t] = abs.fuzz;
|
||||
dev->absflat[t] = abs.flat;
|
||||
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
return -EINVAL;
|
||||
return evdev_ioctl_handler(file, cmd, compat_ptr(arg), 1);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
|
|
|||
Reference in New Issue