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Commit b69d6536 authored by Benjamin Tissoires's avatar Benjamin Tissoires Committed by Jiri Kosina
Browse files

HID: add inliners for ll_driver transport-layer callbacks 



Those callbacks are not mandatory, so it's better to add inliners
to use them safely.

Reviewed-by: default avatarDavid Herrmann <dh.herrmann@gmail.com>
Signed-off-by: default avatarBenjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 0a7f364e

include/linux/hid.h

+45 −0
Original line number Diff line number Diff line
@@ -680,6 +680,8 @@ struct hid_driver { 
 *	   shouldn't allocate anything to not leak memory

 * @request: send report request to device (e.g. feature report)

 * @wait: wait for buffered io to complete (send/recv reports)

 * @raw_request: send raw report request to device (e.g. feature report)

 * @output_report: send output report to device

 * @idle: send idle request to device

 */

struct hid_ll_driver {
@@ -973,6 +975,49 @@ static inline void hid_hw_request(struct hid_device *hdev, 
		hdev->ll_driver->request(hdev, report, reqtype);

}



/**

 * hid_hw_raw_request - send report request to device

 *

 * @hdev: hid device

 * @reportnum: report ID

 * @buf: in/out data to transfer

 * @len: length of buf

 * @rtype: HID report type

 * @reqtype: HID_REQ_GET_REPORT or HID_REQ_SET_REPORT

 *

 * @return: count of data transfered, negative if error

 *

 * Same behavior as hid_hw_request, but with raw buffers instead.

 */

static inline int hid_hw_raw_request(struct hid_device *hdev,

				  unsigned char reportnum, __u8 *buf,

				  size_t len, unsigned char rtype, int reqtype)

{

	if (hdev->ll_driver->raw_request)

		return hdev->ll_driver->raw_request(hdev, reportnum, buf, len,

						    rtype, reqtype);



	return -ENOSYS;

}



/**

 * hid_hw_output_report - send output report to device

 *

 * @hdev: hid device

 * @buf: raw data to transfer

 * @len: length of buf

 *

 * @return: count of data transfered, negative if error

 */

static inline int hid_hw_output_report(struct hid_device *hdev, __u8 *buf,

					size_t len)

{

	if (hdev->ll_driver->output_report)

		return hdev->ll_driver->output_report(hdev, buf, len);



	return -ENOSYS;

}



/**

 * hid_hw_idle - send idle request to device

 *