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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-petalynx.c
parent3cfc2c42c1cbc8e238bb9c0612c0df4565e3a8b4 (diff)
downloadlwn-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-petalynx.c')
-rw-r--r--drivers/hid/hid-petalynx.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/hid/hid-petalynx.c b/drivers/hid/hid-petalynx.c
index 500fbd0652dc..308d6ae48a3e 100644
--- a/drivers/hid/hid-petalynx.c
+++ b/drivers/hid/hid-petalynx.c
@@ -23,10 +23,10 @@
#include "hid-ids.h"
/* Petalynx Maxter Remote has maximum for consumer page set too low */
-static void pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
- unsigned int rsize)
+static __u8 *pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+ unsigned int *rsize)
{
- if (rsize >= 60 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&
+ if (*rsize >= 60 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&
rdesc[41] == 0x00 && rdesc[59] == 0x26 &&
rdesc[60] == 0xf9 && rdesc[61] == 0x00) {
dev_info(&hdev->dev, "fixing up Petalynx Maxter Remote report "
@@ -34,6 +34,7 @@ static void pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
rdesc[60] = 0xfa;
rdesc[40] = 0xfa;
}
+ return rdesc;
}
#define pl_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \