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[3.11.y.z,extended,stable] Patch "HID: lg: fix Report Descriptor for Logitech MOMO Force (Black)" has been added to staging queue

Message ID 1386772916-11104-1-git-send-email-luis.henriques@canonical.com
State New
Headers show

Commit Message

Luis Henriques Dec. 11, 2013, 2:41 p.m. UTC
This is a note to let you know that I have just added a patch titled

    HID: lg: fix Report Descriptor for Logitech MOMO Force (Black)

to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.11.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

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From d984789971c00f638574c9a1d92cfae060728741 Mon Sep 17 00:00:00 2001
From: Simon Wood <simon@mungewell.org>
Date: Thu, 10 Oct 2013 08:20:13 -0600
Subject: HID: lg: fix Report Descriptor for Logitech MOMO Force (Black)

commit 348cbaa800f8161168b20f85f72abb541c145132 upstream.

By default the Logitech MOMO Force (Black) presents a combined accel/brake
axis ('Y'). This patch modifies the HID descriptor to present seperate
accel/brake axes ('Y' and 'Z').

Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/hid/hid-lg.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

--
1.8.3.2
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Patch

diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index 1bfd292..06eb45f 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -47,6 +47,7 @@ 
 #define DFP_RDESC_ORIG_SIZE	97
 #define FV_RDESC_ORIG_SIZE	130
 #define MOMO_RDESC_ORIG_SIZE	87
+#define MOMO2_RDESC_ORIG_SIZE	87

 /* Fixed report descriptors for Logitech Driving Force (and Pro)
  * wheel controllers
@@ -284,6 +285,54 @@  static __u8 momo_rdesc_fixed[] = {
 0xC0                /*  End Collection                      */
 };

+static __u8 momo2_rdesc_fixed[] = {
+0x05, 0x01,         /*  Usage Page (Desktop),               */
+0x09, 0x04,         /*  Usage (Joystik),                    */
+0xA1, 0x01,         /*  Collection (Application),           */
+0xA1, 0x02,         /*      Collection (Logical),           */
+0x95, 0x01,         /*          Report Count (1),           */
+0x75, 0x0A,         /*          Report Size (10),           */
+0x15, 0x00,         /*          Logical Minimum (0),        */
+0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */
+0x35, 0x00,         /*          Physical Minimum (0),       */
+0x46, 0xFF, 0x03,   /*          Physical Maximum (1023),    */
+0x09, 0x30,         /*          Usage (X),                  */
+0x81, 0x02,         /*          Input (Variable),           */
+0x95, 0x0A,         /*          Report Count (10),          */
+0x75, 0x01,         /*          Report Size (1),            */
+0x25, 0x01,         /*          Logical Maximum (1),        */
+0x45, 0x01,         /*          Physical Maximum (1),       */
+0x05, 0x09,         /*          Usage Page (Button),        */
+0x19, 0x01,         /*          Usage Minimum (01h),        */
+0x29, 0x0A,         /*          Usage Maximum (0Ah),        */
+0x81, 0x02,         /*          Input (Variable),           */
+0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
+0x09, 0x00,         /*          Usage (00h),                */
+0x95, 0x04,         /*          Report Count (4),           */
+0x81, 0x02,         /*          Input (Variable),           */
+0x95, 0x01,         /*          Report Count (1),           */
+0x75, 0x08,         /*          Report Size (8),            */
+0x26, 0xFF, 0x00,   /*          Logical Maximum (255),      */
+0x46, 0xFF, 0x00,   /*          Physical Maximum (255),     */
+0x09, 0x01,         /*          Usage (01h),                */
+0x81, 0x02,         /*          Input (Variable),           */
+0x05, 0x01,         /*          Usage Page (Desktop),       */
+0x09, 0x31,         /*          Usage (Y),                  */
+0x81, 0x02,         /*          Input (Variable),           */
+0x09, 0x32,         /*          Usage (Z),                  */
+0x81, 0x02,         /*          Input (Variable),           */
+0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
+0x09, 0x00,         /*          Usage (00h),                */
+0x81, 0x02,         /*          Input (Variable),           */
+0xC0,               /*      End Collection,                 */
+0xA1, 0x02,         /*      Collection (Logical),           */
+0x09, 0x02,         /*          Usage (02h),                */
+0x95, 0x07,         /*          Report Count (7),           */
+0x91, 0x02,         /*          Output (Variable),          */
+0xC0,               /*      End Collection,                 */
+0xC0                /*  End Collection                      */
+};
+
 /*
  * Certain Logitech keyboards send in report #3 keys which are far
  * above the logical maximum described in descriptor. This extends
@@ -343,6 +392,15 @@  static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		}
 		break;

+	case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2:
+		if (*rsize == MOMO2_RDESC_ORIG_SIZE) {
+			hid_info(hdev,
+				"fixing up Logitech Momo Racing Force (Black) report descriptor\n");
+			rdesc = momo2_rdesc_fixed;
+			*rsize = sizeof(momo2_rdesc_fixed);
+		}
+		break;
+
 	case USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL:
 		if (*rsize == FV_RDESC_ORIG_SIZE) {
 			hid_info(hdev,