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USBHID: report descriptor fix for MacBook JIS keyboard 

This patch fixes the problem, that Japanese MacBook doesn't recognize some keys
like '\'(yen, or backslash), '|'(pipe), and '_'(underscore).

It is due to that MacBook JIS keyboard (jp106) sends wrong report descriptor.
It saids "logical maximum = 0x65", so Keyboard.0089 is mapped to Key.Unknown,
while it should be accepted as Key.Yen.

Signed-off-by: Tomoya Adachi <adachi@il.is.s.u-tokyo.ac.jp>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Tomoya Adachi 2007-10-03 23:27:49 +02:00 committed by Jiri Kosina
parent 0ce1ac3b3c
commit 08f06177f4
2 changed files with 18 additions and 0 deletions
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17
drivers/hid/usbhid/hid-quirks.c
View File

@ -624,6 +624,8 @@ static const struct hid_rdesc_blacklist {
{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER, HID_QUIRK_RDESC_LOGITECH },
{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2, HID_QUIRK_RDESC_LOGITECH },
{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS, HID_QUIRK_RDESC_MACBOOK_JIS },
{ USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE, HID_QUIRK_RDESC_PETALYNX },
{ USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1, HID_QUIRK_RDESC_SWAPPED_MIN_MAX },
@ -937,6 +939,18 @@ static void usbhid_fixup_cypress_descriptor(unsigned char *rdesc, int rsize)
printk(KERN_INFO "Fixing up Cypress report descriptor\n");
}
/*
* MacBook JIS keyboard has wrong logical maximum
*/
static void usbhid_fixup_macbook_descriptor(unsigned char *rdesc, int rsize)
{
if (rsize >= 60 && rdesc[53] == 0x65
&& rdesc[59] == 0x65) {
printk(KERN_INFO "Fixing up MacBook JIS keyboard report descriptor\n");
rdesc[53] = rdesc[59] = 0xe7;
}
}
static void __usbhid_fixup_report_descriptor(__u32 quirks, char *rdesc, unsigned rsize)
{
@ -951,6 +965,9 @@ static void __usbhid_fixup_report_descriptor(__u32 quirks, char *rdesc, unsigned
if (quirks & HID_QUIRK_RDESC_PETALYNX)
usbhid_fixup_petalynx_descriptor(rdesc, rsize);
if (quirks & HID_QUIRK_RDESC_MACBOOK_JIS)
usbhid_fixup_macbook_descriptor(rdesc, rsize);
}
/**

1
include/linux/hid.h
View File

@ -286,6 +286,7 @@ struct hid_item {
#define HID_QUIRK_RDESC_LOGITECH 0x00000002
#define HID_QUIRK_RDESC_SWAPPED_MIN_MAX 0x00000004
#define HID_QUIRK_RDESC_PETALYNX 0x00000008
#define HID_QUIRK_RDESC_MACBOOK_JIS 0x00000010
/*
* This is the global environment of the parser. This information is