summaryrefslogtreecommitdiffstats
path: root/drivers/hid/hid-lg.c
diff options
context:
space:
mode:
authorJiri Kosina <jkosina@suse.cz>2009-11-13 10:45:53 +0100
committerJiri Kosina <jkosina@suse.cz>2009-11-13 10:45:53 +0100
commit24985cf68612a5617d396b0b188cec807641cde1 (patch)
treeac0fcd5288312e8ecdad289258c07ae8ea8dca1c /drivers/hid/hid-lg.c
parent5b915d9e6dc3d22fedde91dfef1cb1a8fa9a1870 (diff)
downloadlinux-24985cf68612a5617d396b0b188cec807641cde1.tar.bz2
HID: support Logitech/3DConnexion SpaceTraveler and SpaceNavigator
These devices wrongly report their axes as relative instead of absolute. Fix this in up report descriptor of the device before it enters the parser. Reported-by: simon.windows@gmail.com Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-lg.c')
-rw-r--r--drivers/hid/hid-lg.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index 0f870a3243ed..8e28f1dc40a6 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -33,6 +33,7 @@
#define LG_NOGET 0x100
#define LG_FF 0x200
#define LG_FF2 0x400
+#define LG_RDESC_REL_ABS 0x800
/*
* Certain Logitech keyboards send in report #3 keys which are far
@@ -51,6 +52,13 @@ static void lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
rdesc[84] = rdesc[89] = 0x4d;
rdesc[85] = rdesc[90] = 0x10;
}
+ if ((quirks & LG_RDESC_REL_ABS) && rsize >= 50 &&
+ rdesc[32] == 0x81 && rdesc[33] == 0x06 &&
+ rdesc[49] == 0x81 && rdesc[50] == 0x06) {
+ dev_info(&hdev->dev, "fixing up rel/abs in Logitech "
+ "report descriptor\n");
+ rdesc[33] = rdesc[50] = 0x02;
+ }
}
#define lg_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
@@ -303,8 +311,13 @@ static const struct hid_device_id lg_devices[] = {
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2),
.driver_data = LG_FF2 },
+ { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR),
+ .driver_data = LG_RDESC_REL_ABS },
+ { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER),
+ .driver_data = LG_RDESC_REL_ABS },
{ }
};
+
MODULE_DEVICE_TABLE(hid, lg_devices);
static struct hid_driver lg_driver = {