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Input: Make hid-core issue a SET_IDLE request before GET_REPORT, like 

Windows does. This should make life easier for devices that were
       tested with Windows only.

Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Vojtech Pavlik 2005-05-29 02:28:00 -05:00 committed by Dmitry Torokhov
parent 8608471262
commit 854561b019
1 changed files with 9 additions and 4 deletions
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13
drivers/usb/input/hid-core.c
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@ -1233,6 +1233,13 @@ int hid_wait_io(struct hid_device *hid)
return 0;
}
static int hid_set_idle(struct usb_device *dev, int ifnum, int report, int idle)
{
usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
HID_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, (idle << 8) | report,
ifnum, NULL, 0, USB_CTRL_SET_TIMEOUT);
}
static int hid_get_class_descriptor(struct usb_device *dev, int ifnum,
unsigned char type, void *buf, int size)
{
@ -1301,10 +1308,6 @@ void hid_init_reports(struct hid_device *hid)
if (err)
warn("timeout initializing reports\n");
usb_control_msg(hid->dev, usb_sndctrlpipe(hid->dev, 0),
HID_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0,
hid->ifnum, NULL, 0, USB_CTRL_SET_TIMEOUT);
}
#define USB_VENDOR_ID_WACOM 0x056a
@ -1572,6 +1575,8 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
return NULL;
}
hid_set_idle(dev, interface->desc.bInterfaceNumber, 0, 0);
if ((n = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber, HID_DT_REPORT, rdesc, rsize)) < 0) {
dbg("reading report descriptor failed");
kfree(rdesc);