diff options
| author | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2014-02-20 15:24:49 -0500 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2014-02-24 17:23:15 +0100 |
| commit | 3c86726cfe38952f0366f86acfbbb025813ec1c2 (patch) | |
| tree | 74192839f11f698ee74ea55b4c17717e4c1bffba /drivers/hid/hid-core.c | |
| parent | 2ebaebcf31096f83401c850393e93bc8f28db0e9 (diff) | |
HID: make .raw_request mandatory
SET_REPORT and GET_REPORT are mandatory in the HID specification.
Make the corresponding API in hid-core mandatory too, which removes the
need to test against it in some various places.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-core.c')
| -rw-r--r-- | drivers/hid/hid-core.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index b6ae69711d2a..0b57babe3f9f 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1330,9 +1330,6 @@ void __hid_request(struct hid_device *hid, struct hid_report *report, int ret; int len; - if (!hid->ll_driver->raw_request) - return; - buf = hid_alloc_report_buf(report, GFP_KERNEL); if (!buf) return; @@ -2472,6 +2469,14 @@ int hid_add_device(struct hid_device *hdev) return -ENODEV; /* + * Check for the mandatory transport channel. + */ + if (!hdev->ll_driver->raw_request) { + hid_err(hdev, "transport driver missing .raw_request()\n"); + return -EINVAL; + } + + /* * Read the device report descriptor once and use as template * for the driver-specific modifications. */ |