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| author |   Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2014-02-05 16:33:16 -0500 |
|---|---|---|
| committer |   Jiri Kosina <jkosina@suse.cz> | 2014-02-17 14:05:55 +0100 |
| commit | b69d6536794c93dda362ab79c9f559382e3465be (patch) | |
| tree | 1de569075c2c5d77b88c54f98213affad9e8500f /include/linux/hid.h | |
| parent | HID: Add the transport-driver functions to the HIDP driver. (diff) | |
| download | linux-dev-b69d6536794c93dda362ab79c9f559382e3465be.tar.xz linux-dev-b69d6536794c93dda362ab79c9f559382e3465be.zip | |
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: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'include/linux/hid.h')
| -rw-r--r-- | include/linux/hid.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/include/linux/hid.h b/include/linux/hid.h index 003cc8e89831..dddcad07c2d9 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -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 { @@ -974,6 +976,49 @@ static inline void hid_hw_request(struct hid_device *hdev, } /** + * 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 * * @hdev: hid device |