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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 21:52:42 +0400 |
| commit | 73e4008ddddc84d5f2499c17012b340a0dae153e (patch) | |
| tree | d3adfa8c5792e71c21cb7a9cd18517cce9c92685 /drivers/hid/hid-microsoft.c | |
| parent | 3cfc2c42c1cbc8e238bb9c0612c0df4565e3a8b4 (diff) | |
| download | linux-73e4008ddddc84d5f2499c17012b340a0dae153e.tar.xz | |
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-microsoft.c')
| -rw-r--r-- | drivers/hid/hid-microsoft.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c index 359cc447c6c6..dc618c33d0a2 100644 --- a/drivers/hid/hid-microsoft.c +++ b/drivers/hid/hid-microsoft.c @@ -33,18 +33,19 @@ * Microsoft Wireless Desktop Receiver (Model 1028) has * 'Usage Min/Max' where it ought to have 'Physical Min/Max' */ -static void ms_report_fixup(struct hid_device *hdev, __u8 *rdesc, - unsigned int rsize) +static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc, + unsigned int *rsize) { unsigned long quirks = (unsigned long)hid_get_drvdata(hdev); - if ((quirks & MS_RDESC) && rsize == 571 && rdesc[557] == 0x19 && + if ((quirks & MS_RDESC) && *rsize == 571 && rdesc[557] == 0x19 && rdesc[559] == 0x29) { dev_info(&hdev->dev, "fixing up Microsoft Wireless Receiver " "Model 1028 report descriptor\n"); rdesc[557] = 0x35; rdesc[559] = 0x45; } + return rdesc; } #define ms_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \ |