From 73e4008ddddc84d5f2499c17012b340a0dae153e Mon Sep 17 00:00:00 2001 From: Nikolai Kondrashov Date: Fri, 6 Aug 2010 23:03:06 +0400 Subject: 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 Signed-off-by: Jiri Kosina --- drivers/hid/hid-microsoft.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers/hid/hid-microsoft.c') 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, \ -- cgit v1.2.3-59-g8ed1b