8da3dc2875
Adds the tranzport and alphatrack drivers to the staging tree. Cc: David Taht <d@teklibre.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/* USB defines for older kernels */
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#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)
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/**
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* usb_endpoint_dir_out - check if the endpoint has OUT direction
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* @epd: endpoint to be checked
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*
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* Returns true if the endpoint is of type OUT, otherwise it returns false.
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*/
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static inline int usb_endpoint_dir_out(const struct usb_endpoint_descriptor *epd)
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{
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return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
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}
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static inline int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd)
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{
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return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN);
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}
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/**
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* usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type
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* @epd: endpoint to be checked
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*
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* Returns true if the endpoint is of type interrupt, otherwise it returns
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* false.
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*/
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static inline int usb_endpoint_xfer_int(const struct usb_endpoint_descriptor *epd)
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{
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return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
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USB_ENDPOINT_XFER_INT);
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}
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/**
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* usb_endpoint_is_int_in - check if the endpoint is interrupt IN
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* @epd: endpoint to be checked
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*
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* Returns true if the endpoint has interrupt transfer type and IN direction,
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* otherwise it returns false.
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*/
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static inline int usb_endpoint_is_int_in(const struct usb_endpoint_descriptor *epd)
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{
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return (usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd));
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}
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/**
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* usb_endpoint_is_int_out - check if the endpoint is interrupt OUT
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* @epd: endpoint to be checked
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*
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* Returns true if the endpoint has interrupt transfer type and OUT direction,
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* otherwise it returns false.
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*/
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static inline int usb_endpoint_is_int_out(const struct usb_endpoint_descriptor *epd)
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{
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return (usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd));
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}
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#endif /* older kernel versions */
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