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| author | Lucas Stach <l.stach@pengutronix.de> | 2021-03-08 06:40:37 +0100 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2021-03-08 06:56:50 +0100 |
| commit | ad117c558e838f9fa93af265d8f9dd54e87e15b1 (patch) | |
| tree | 0ed6d7f87659eb3d86dbca6f32ba4b3b2527a934 /drivers/input | |
| parent | Input: exc3000 - fix firmware version query for device in bootloader (diff) | |
| download | linux-ad117c558e838f9fa93af265d8f9dd54e87e15b1.tar.xz linux-ad117c558e838f9fa93af265d8f9dd54e87e15b1.zip | |
Input: exc3000 - add type sysfs attribute
Add a sysfs attribute to query the type of the touchscreen device.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20210125182527.1225245-5-l.stach@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/touchscreen/exc3000.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/exc3000.c b/drivers/input/touchscreen/exc3000.c index 66682a0c37d7..cbe0dd412912 100644 --- a/drivers/input/touchscreen/exc3000.c +++ b/drivers/input/touchscreen/exc3000.c @@ -301,9 +301,26 @@ static ssize_t model_show(struct device *dev, } static DEVICE_ATTR_RO(model); +static ssize_t type_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct exc3000_data *data = i2c_get_clientdata(client); + u8 response[EXC3000_LEN_FRAME]; + int ret; + + ret = exc3000_vendor_data_request(data, (u8[]){'F'}, 1, response, 1); + if (ret < 0) + return ret; + + return sprintf(buf, "%s\n", &response[1]); +} +static DEVICE_ATTR_RO(type); + static struct attribute *sysfs_attrs[] = { &dev_attr_fw_version.attr, &dev_attr_model.attr, + &dev_attr_type.attr, NULL }; |