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| author | Yusuke Fujimaki <usk.fujimaki@gmail.com> | 2016-03-21 16:18:42 +0900 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2016-04-01 11:47:04 +0200 |
| commit | eeb01a57921a5e373302733d7cdf1ca87da5375a (patch) | |
| tree | c82df28f699040858e7eb2354f8d4610aac534fb /drivers/hid/hid-asus.c | |
| parent | d66435cc7da95964cb386674bd82ec12ca66320a (diff) | |
| download | linux-eeb01a57921a5e373302733d7cdf1ca87da5375a.tar.bz2 | |
HID: Asus X205TA keyboard driver
Asus X205TA built-in keyboard contains wrong
logical maximum value in report descriptor.
0x05, 0x01, // Usage Page (Generic Desktop)
0x09, 0x06, // Usage (Keyboard)
0xa1, 0x01, // Collection (Application)
0x85, 0x01, // Report ID (1)
0x05, 0x07, // Usage Page (Keyboard/Keypad)
0x19, 0xe0, // Usage Minimum (224)
0x29, 0xe7, // Usage Maximum (231)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x08, // Report Count (8)
0x81, 0x02, // Input (Data,Array,Abs)
0x95, 0x01, // Report Count (1)
0x75, 0x08, // Report Size (8)
0x81, 0x03, // Input (Const,Var,Abs)
0x95, 0x05, // Report Count (5)
0x75, 0x01, // Report Size (1)
0x05, 0x08, // Usage (LED)
0x19, 0x01, // Usage Minimum (1)
0x29, 0x05, // Usage Maximum (5)
0x91, 0x02, // Output (Data,Var,Abs)
0x95, 0x01, // Report Count (1)
0x75, 0x03, // Report Size (3)
0x91, 0x03, // Output (Const,Var,Abs)
0x95, 0x06, // Report Count (6)
0x75, 0x08, // Report Size (8)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x65, // Logical Maximum (101) * too small *
0x05, 0x07, // Usage Page (Keyboard/Keypad)
0x19, 0x00, // Usage Minimum (0)
0x29, 0xdd, // Usage Maximum (221)
0x81, 0x00, // Input(Data,Array,Abs)
In Asus X205TA japanese keyboard model,there are language
specific keys over usage id 101.
This patch correct wrong logical maximum in report
descriptor.
Signed-off-by: Yusuke Fujimaki <usk.fujimaki@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-asus.c')
| -rw-r--r-- | drivers/hid/hid-asus.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c new file mode 100644 index 000000000000..1734e11298ed --- /dev/null +++ b/drivers/hid/hid-asus.c @@ -0,0 +1,48 @@ +/* + * HID driver for Asus X205TA built-in keyboard. + * Fixes small logical maximum to match usage maximum. + * + * Copyright (c) 2016 Yusuke Fujimaki <usk.fujimaki@gmail.com> + * + * This module based on hid-ortek by + * Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com> + * Copyright (c) 2011 Jiri Kosina + */ + +/* + * 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 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc, + unsigned int *rsize) +{ + if (*rsize >= 180 && rdesc[54] == 0x25 && rdesc[55] == 0x65) { + hid_info(hdev, "Fixing up Asus X205TA report descriptor\n"); + rdesc[55] = 0xdd; + } + return rdesc; +} + +static const struct hid_device_id asus_devices[] = { + { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_X205TA_KEYBOARD) }, + { } +}; +MODULE_DEVICE_TABLE(hid, asus_devices); + +static struct hid_driver asus_driver = { + .name = "asus", + .id_table = asus_devices, + .report_fixup = asus_report_fixup +}; +module_hid_driver(asus_driver); + +MODULE_LICENSE("GPL"); |