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>
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index e635199..ec20e83 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -651,7 +651,7 @@
};
if (device->driver->report_fixup)
- device->driver->report_fixup(device, start, size);
+ start = device->driver->report_fixup(device, start, &size);
device->rdesc = kmemdup(start, size, GFP_KERNEL);
if (device->rdesc == NULL)