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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-samsung.c | |
| parent | 3cfc2c42c1cbc8e238bb9c0612c0df4565e3a8b4 (diff) | |
| download | linux-73e4008ddddc84d5f2499c17012b340a0dae153e.tar.bz2 | |
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-samsung.c')
| -rw-r--r-- | drivers/hid/hid-samsung.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/hid/hid-samsung.c b/drivers/hid/hid-samsung.c index bda0fd60c98d..35894444e000 100644 --- a/drivers/hid/hid-samsung.c +++ b/drivers/hid/hid-samsung.c @@ -61,10 +61,10 @@ static inline void samsung_irda_dev_trace(struct hid_device *hdev, "descriptor\n", rsize); } -static void samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc, - unsigned int rsize) +static __u8 *samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc, + unsigned int *rsize) { - if (rsize == 184 && rdesc[175] == 0x25 && rdesc[176] == 0x40 && + if (*rsize == 184 && rdesc[175] == 0x25 && rdesc[176] == 0x40 && rdesc[177] == 0x75 && rdesc[178] == 0x30 && rdesc[179] == 0x95 && rdesc[180] == 0x01 && rdesc[182] == 0x40) { @@ -74,24 +74,25 @@ static void samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc, rdesc[180] = 0x06; rdesc[182] = 0x42; } else - if (rsize == 203 && rdesc[192] == 0x15 && rdesc[193] == 0x0 && + if (*rsize == 203 && rdesc[192] == 0x15 && rdesc[193] == 0x0 && rdesc[194] == 0x25 && rdesc[195] == 0x12) { samsung_irda_dev_trace(hdev, 203); rdesc[193] = 0x1; rdesc[195] = 0xf; } else - if (rsize == 135 && rdesc[124] == 0x15 && rdesc[125] == 0x0 && + if (*rsize == 135 && rdesc[124] == 0x15 && rdesc[125] == 0x0 && rdesc[126] == 0x25 && rdesc[127] == 0x11) { samsung_irda_dev_trace(hdev, 135); rdesc[125] = 0x1; rdesc[127] = 0xe; } else - if (rsize == 171 && rdesc[160] == 0x15 && rdesc[161] == 0x0 && + if (*rsize == 171 && rdesc[160] == 0x15 && rdesc[161] == 0x0 && rdesc[162] == 0x25 && rdesc[163] == 0x01) { samsung_irda_dev_trace(hdev, 171); rdesc[161] = 0x1; rdesc[163] = 0x3; } + return rdesc; } #define samsung_kbd_mouse_map_key_clear(c) \ @@ -130,11 +131,12 @@ static int samsung_kbd_mouse_input_mapping(struct hid_device *hdev, return 1; } -static void samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc, - unsigned int rsize) +static __u8 *samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc, + unsigned int *rsize) { if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product) - samsung_irda_report_fixup(hdev, rdesc, rsize); + rdesc = samsung_irda_report_fixup(hdev, rdesc, rsize); + return rdesc; } static int samsung_input_mapping(struct hid_device *hdev, struct hid_input *hi, |