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Subject[PATCH 1/4] USB: HID: SRW-S1 Gaming Wheel Driver
Date
From: simon <simon@simon-virtual-machine.(none)>

Add support the SRW-S1 by patching HID descriptor to read axis
as Generic Desktop X, Y and Z (rather than Usage page being
'Simulation').

Signed-off-by: Simon Wood <simon@mungewell.org>
tested-by: John Murphy <rosegardener@freeode.co.uk>

---
drivers/hid/Kconfig | 6 +++++
drivers/hid/Makefile | 1 +
drivers/hid/hid-core.c | 1 +
drivers/hid/hid-ids.h | 3 +++
drivers/hid/hid-srws1.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 69 insertions(+)
create mode 100644 drivers/hid/hid-srws1.c

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index e7d6a13..3c98517 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -596,6 +596,12 @@ config HID_SPEEDLINK
---help---
Support for Speedlink Vicious and Divine Cezanne mouse.

+config HID_SRWS1
+ tristate "Steelseries SRW-S1 steering wheel support"
+ depends on USB_HID
+ ---help---
+ Support for Steelseries SRW-S1 steering wheel
+
config HID_SUNPLUS
tristate "Sunplus wireless desktop"
depends on USB_HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index b622157..d3102e2 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -101,6 +101,7 @@ obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o
obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o
obj-$(CONFIG_HID_SONY) += hid-sony.o
obj-$(CONFIG_HID_SPEEDLINK) += hid-speedlink.o
+obj-$(CONFIG_HID_SRWS1) += hid-srws1.o
obj-$(CONFIG_HID_SUNPLUS) += hid-sunplus.o
obj-$(CONFIG_HID_GREENASIA) += hid-gaff.o
obj-$(CONFIG_HID_THRUSTMASTER) += hid-tmff.o
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index eb2ee11..65cda7f 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1697,6 +1697,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 4dfa605..f5976f3 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -723,6 +723,9 @@
#define USB_VENDOR_ID_STANTUM_SITRONIX 0x1403
#define USB_DEVICE_ID_MTP_SITRONIX 0x5001

+#define USB_VENDOR_ID_STEELSERIES 0x1038
+#define USB_DEVICE_ID_STEELSERIES_SRWS1 0x1410
+
#define USB_VENDOR_ID_SUN 0x0430
#define USB_DEVICE_ID_RARITAN_KVM_DONGLE 0xcdab

diff --git a/drivers/hid/hid-srws1.c b/drivers/hid/hid-srws1.c
new file mode 100644
index 0000000..7776d74
--- /dev/null
+++ b/drivers/hid/hid-srws1.c
@@ -0,0 +1,58 @@
+/*
+ * HID driver for Steelseries SRW-S1
+ *
+ * Copyright (c) 2013 Simon Wood
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+static __u8 *srws1_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+ unsigned int *rsize)
+{
+ if (*rsize >= 115 && rdesc[11] == 0x02 && rdesc[13] == 0xc8
+ && rdesc[29] == 0xbb && rdesc[40] == 0xc5) {
+ hid_info(hdev, "Fixing up Steelseries SRW-S1 report descriptor\n");
+ rdesc[11] = 0x01;
+ rdesc[13] = 0x30;
+ rdesc[29] = 0x31;
+ rdesc[40] = 0x32;
+ }
+ return rdesc;
+}
+
+static const struct hid_device_id srws1_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, srws1_devices);
+
+static struct hid_driver srws1_driver = {
+ .name = "srws1",
+ .id_table = srws1_devices,
+ .report_fixup = srws1_report_fixup
+};
+
+static int __init srws1_init(void)
+{
+ return hid_register_driver(&srws1_driver);
+}
+
+static void __exit srws1_exit(void)
+{
+ hid_unregister_driver(&srws1_driver);
+}
+
+module_init(srws1_init);
+module_exit(srws1_exit);
+MODULE_LICENSE("GPL");
--
1.7.10.4


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