[PATCH 1/2] sony_ff_hid_descriptor

From: Simon Wood
Date: Wed Jun 01 2011 - 15:42:46 EST


This patch modifies the HID descriptor to allow the reporting of
the accelerometers and gyro via a joystick axis.
---
drivers/hid/hid-sony.c | 11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 936c911..5c930dc 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -28,6 +28,12 @@
#define SIXAXIS_CONTROLLER_USB (1 << 1)
#define SIXAXIS_CONTROLLER_BT (1 << 2)

+static const u8 sixaxis_rdesc_fixup[] = {
+ 0x95, 0x13, 0x09, 0x01, 0x81, 0x02, 0x95, 0x0C,
+ 0x81, 0x01, 0x75, 0x10, 0x95, 0x04, 0x26, 0xFF,
+ 0x03, 0x46, 0xFF, 0x03, 0x09, 0x01, 0x81, 0x02
+ };
+
struct sony_sc {
unsigned long quirks;
};
@@ -43,6 +49,11 @@ static __u8 *sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
hid_info(hdev, "Fixing up Sony Vaio VGX report descriptor\n");
rdesc[55] = 0x06;
}
+ if ((sc->quirks & SIXAXIS_CONTROLLER_USB) &&
+ *rsize == 148 && rdesc[83] == 0x75) {
+ hid_info(hdev, "Fixing up Sony Sixaxis report descriptor\n");
+ memcpy((void *)&rdesc[83], (void *) &sixaxis_rdesc_fixup, sizeof(sixaxis_rdesc_fixup));
+ }
return rdesc;
}

--
1.7.4.1

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