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authorNikolai Kondrashov <spbnick@gmail.com>2010-08-06 23:03:06 +0400
committerJiri Kosina <jkosina@suse.cz>2010-08-09 19:52:42 +0200
commit73e4008ddddc84d5f2499c17012b340a0dae153e (patch)
treed3adfa8c5792e71c21cb7a9cd18517cce9c92685 /drivers/hid/hid-microsoft.c
parent3cfc2c42c1cbc8e238bb9c0612c0df4565e3a8b4 (diff)
downloadlinux-2.6.38-lt-ux500-73e4008ddddc84d5f2499c17012b340a0dae153e.tar.gz
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.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c
index 359cc447c6c..dc618c33d0a 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, \