A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 19:21:31 -04:00
Code Issues Projects Releases Packages Wiki Activity

HID: fix broken Logitech S510 keyboard report descriptor; make extra keys work

Browse source 
This patch makes extra keys (F1-F12 in special mode, zooming, rotate, shuffle)
on Logitech S510 keyboard work.

Logitech S510 keyboard sends in report no. 3 keys which are far above the
logical maximum described in descriptor for given report.

This patch introduces a HID quirk for this wireless USB receiver/keyboard
in order to fix the report descriptor before it's being parsed - the logical
maximum and the number of usages is bumped up to 0x104d). The values are in the
"Reserved" area of consumer HUT, so HID_MAX_USAGE had to be changed too.

In addition to proper extracting of  the values from report descriptor, proper
HID-input mapping is introduced for them.

Signed-off-by: Jiri Kosina <[email protected]>
This commit is contained in:
Jiri Kosina 2007-02-21 19:27:49 +01:00
commit b55fd23ccd
3 changed files with 46 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

23
drivers/usb/input/hid-core.c
View file

@ -4,7 +4,7 @@
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
* Copyright (c) 2006 Jiri Kosina
* Copyright (c) 2006-2007 Jiri Kosina
*/
/*
@ -755,6 +755,7 @@ void usbhid_init_reports(struct hid_device *hid)
#define USB_VENDOR_ID_LOGITECH 0x046d
#define USB_DEVICE_ID_LOGITECH_USB_RECEIVER 0xc101
#define USB_DEVICE_ID_LOGITECH_USB_RECEIVER_2 0xc517
#define USB_VENDOR_ID_IMATION 0x0718
#define USB_DEVICE_ID_DISC_STAKKA 0xd000
@ -941,6 +942,7 @@ static const struct hid_blacklist {
{ USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_USB_RECEIVER, HID_QUIRK_BAD_RELATIVE_KEYS },
{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_USB_RECEIVER_2, HID_QUIRK_LOGITECH_S510_DESCRIPTOR },
{ USB_VENDOR_ID_PANTHERLORD, USB_DEVICE_ID_PANTHERLORD_TWIN_USB_JOYSTICK, HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
@ -1038,6 +1040,22 @@ static void hid_fixup_sony_ps3_controller(struct usb_device *dev, int ifnum)
kfree(buf);
}
/*
* Logitech S510 keyboard sends in report #3 keys which are far
* above the logical maximum described in descriptor. This extends
* the original value of 0x28c of logical maximum to 0x104d
*/
static void hid_fixup_s510_descriptor(unsigned char *rdesc, int rsize)
{
if (rsize >= 90 && rdesc[83] == 0x26
&& rdesc[84] == 0x8c
&& rdesc[85] == 0x02) {
info("Fixing up Logitech S510 report descriptor");
rdesc[84] = rdesc[89] = 0x4d;
rdesc[85] = rdesc[90] = 0x10;
}
}
static struct hid_device *usb_hid_configure(struct usb_interface *intf)
{
struct usb_host_interface *interface = intf->cur_altsetting;
@ -1106,6 +1124,9 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
if ((quirks & HID_QUIRK_CYMOTION))
hid_fixup_cymotion_descriptor(rdesc, rsize);
if (quirks & HID_QUIRK_LOGITECH_S510_DESCRIPTOR)
hid_fixup_s510_descriptor(rdesc, rsize);
#ifdef CONFIG_HID_DEBUG
printk(KERN_DEBUG __FILE__ ": report descriptor (size %u, read %d) = ", rsize, n);
for (n = 0; n < rsize; n++)