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HID: allow resizing and replacing report descriptors

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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>
This commit is contained in:
Nikolai Kondrashov 2010-08-06 23:03:06 +04:00 • committed by Jiri Kosina
parent 3cfc2c42c1
commit 73e4008ddd
17 changed files with 72 additions and 56 deletions
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4
include/linux/hid.h
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@ -626,8 +626,8 @@ struct hid_driver {
int (*event)(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value);
void (*report_fixup)(struct hid_device *hdev, __u8 *buf,
unsigned int size);
__u8 *(*report_fixup)(struct hid_device *hdev, __u8 *buf,
unsigned int *size);
int (*input_mapping)(struct hid_device *hdev,
struct hid_input *hidinput, struct hid_field *field,