diff options
| author | Julian Sax <jsbc@gmx.de> | 2018-09-19 12:46:23 +0300 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2018-09-29 22:25:59 +0300 |
| commit | 9ee3e06610fdb8a601cde59c92089fb6c1deb4aa (patch) | |
| tree | 90689de6f079e313896cadd3282c29fad0b70601 /drivers/hid/i2c-hid/i2c-hid.h | |
| parent | dc4e05d079591c6f69bb28a07bcc13d4f1c9993b (diff) | |
| download | linux-9ee3e06610fdb8a601cde59c92089fb6c1deb4aa.tar.xz | |
HID: i2c-hid: override HID descriptors for certain devices
A particular touchpad (SIPODEV SP1064) refuses to supply the HID
descriptors. This patch provides the framework for overriding these
descriptors based on DMI data. It also includes the descriptors for
said touchpad, which were extracted by listening to the traffic of the
windows filter driver, as well as the DMI data for the laptops known
to use this device.
Relevant Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1526312
Cc: Hans de Goede <hdegoede@redhat.com>
Reported-and-tested-by: ahormann@gmx.net
Reported-and-tested-by: Bruno Jesus <bruno.fl.jesus@gmail.com>
Reported-and-tested-by: Dietrich <enaut.w@googlemail.com>
Reported-and-tested-by: kloxdami@yahoo.com
Signed-off-by: Julian Sax <jsbc@gmx.de>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/i2c-hid/i2c-hid.h')
| -rw-r--r-- | drivers/hid/i2c-hid/i2c-hid.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/hid/i2c-hid/i2c-hid.h b/drivers/hid/i2c-hid/i2c-hid.h new file mode 100644 index 000000000000..a8c19aef5824 --- /dev/null +++ b/drivers/hid/i2c-hid/i2c-hid.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +#ifndef I2C_HID_H +#define I2C_HID_H + + +#ifdef CONFIG_DMI +struct i2c_hid_desc *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name); +char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name, + unsigned int *size); +#else +static inline struct i2c_hid_desc + *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name) +{ return NULL; } +static inline char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name, + unsigned int *size) +{ return NULL; } +#endif + +#endif |