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authorJiri Kosina <jkosina@suse.cz>2011-03-21 15:54:22 +0300
committerJiri Kosina <jkosina@suse.cz>2011-03-21 18:12:23 +0300
commitd586dca06adddc6cee7177b013ee93eaffc9fe0e (patch)
tree33537a956c753ec42f3621e7e1be1e101518f4ab /drivers/hid/hid-ortek.c
parent99759619b27662d1290901228d77a293e6e83200 (diff)
downloadlinux-d586dca06adddc6cee7177b013ee93eaffc9fe0e.tar.xz
HID: add support for Skycable 0x3f07 wireless presenter
This device contains the very same bug in report descriptor as the Ortek ones do (i.e. LogicalMinimum == 1, which is wrong for the key array). As we have more reports for the Ortek devices, we are keeping the driver name for now. Apparently there is a chip producer which sells chip with this buggy descriptor to multiple vendors. Thus if such reports start to come at highger frequency, we'll either have to rename the driver accordingly, or come up with more generic workaround. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-ortek.c')
-rw-r--r--drivers/hid/hid-ortek.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/hid/hid-ortek.c b/drivers/hid/hid-ortek.c
index f9b7dd4f607f..0ffa1d2d64f0 100644
--- a/drivers/hid/hid-ortek.c
+++ b/drivers/hid/hid-ortek.c
@@ -1,8 +1,14 @@
/*
- * HID driver for Ortek PKB-1700/WKB-2000 (wireless keyboard + mouse trackpad).
- * Fixes LogicalMaximum error in HID report description.
+ * HID driver for various devices which are apparently based on the same chipset
+ * from certain vendor which produces chips that contain wrong LogicalMaximum
+ * value in their HID report descriptor. Currently supported devices are:
+ *
+ * Ortek PKB-1700
+ * Ortek WKB-2000
+ * Skycable wireless presenter
*
* Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com>
+ * Copyright (c) 2011 Jiri Kosina
*/
/*
@@ -22,8 +28,11 @@ static __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) {
- hid_info(hdev, "Fixing up Ortek WKB-2000 report descriptor\n");
+ hid_info(hdev, "Fixing up logical minimum in report descriptor (Ortek)\n");
rdesc[55] = 0x92;
+ } else if (*rsize >= 54 && rdesc[52] == 0x25 && rdesc[53] == 0x01) {
+ hid_info(hdev, "Fixing up logical minimum in report descriptor (Skycable)\n");
+ rdesc[53] = 0x65;
}
return rdesc;
}
@@ -31,6 +40,7 @@ static __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
static const struct hid_device_id ortek_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
{ }
};
MODULE_DEVICE_TABLE(hid, ortek_devices);