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| author | Nikolai Kondrashov <spbnick@gmail.com> | 2010-08-06 23:03:06 +0400 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-08-09 19:52:42 +0200 |
| commit | 73e4008ddddc84d5f2499c17012b340a0dae153e (patch) | |
| tree | d3adfa8c5792e71c21cb7a9cd18517cce9c92685 /drivers/hid/hid-sony.c | |
| parent | 3cfc2c42c1cbc8e238bb9c0612c0df4565e3a8b4 (diff) | |
| download | lwn-73e4008ddddc84d5f2499c17012b340a0dae153e.tar.gz lwn-73e4008ddddc84d5f2499c17012b340a0dae153e.zip | |
HID: allow resizing and replacing report descriptors
Update hid_driver's report_fixup prototype to allow changing report
descriptor size and/or returning completely different report descriptor.
Update existing usage accordingly.
This is to give more freedom in descriptor fixup and to allow having a whole
fixed descriptor in the code for the sake of readability.
Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-sony.c')
| -rw-r--r-- | drivers/hid/hid-sony.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c index 402d5574b574..9fa034915185 100644 --- a/drivers/hid/hid-sony.c +++ b/drivers/hid/hid-sony.c @@ -31,17 +31,18 @@ struct sony_sc { }; /* Sony Vaio VGX has wrongly mouse pointer declared as constant */ -static void sony_report_fixup(struct hid_device *hdev, __u8 *rdesc, - unsigned int rsize) +static __u8 *sony_report_fixup(struct hid_device *hdev, __u8 *rdesc, + unsigned int *rsize) { struct sony_sc *sc = hid_get_drvdata(hdev); if ((sc->quirks & VAIO_RDESC_CONSTANT) && - rsize >= 56 && rdesc[54] == 0x81 && rdesc[55] == 0x07) { + *rsize >= 56 && rdesc[54] == 0x81 && rdesc[55] == 0x07) { dev_info(&hdev->dev, "Fixing up Sony Vaio VGX report " "descriptor\n"); rdesc[55] = 0x06; } + return rdesc; } /* |