diff options
Diffstat (limited to 'drivers/platform/x86/ideapad-laptop.c')
-rw-r--r-- | drivers/platform/x86/ideapad-laptop.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index 24ca9fbe31cc..933668e48f87 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -423,9 +423,42 @@ static ssize_t store_ideapad_fan(struct device *dev, static DEVICE_ATTR(fan_mode, 0644, show_ideapad_fan, store_ideapad_fan); +static ssize_t touchpad_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct ideapad_private *priv = dev_get_drvdata(dev); + unsigned long result; + + if (read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &result)) + return sprintf(buf, "-1\n"); + return sprintf(buf, "%lu\n", result); +} + +static ssize_t touchpad_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ideapad_private *priv = dev_get_drvdata(dev); + bool state; + int ret; + + ret = kstrtobool(buf, &state); + if (ret) + return ret; + + ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_TOUCHPAD, state); + if (ret < 0) + return -EIO; + return count; +} + +static DEVICE_ATTR_RW(touchpad); + static struct attribute *ideapad_attributes[] = { &dev_attr_camera_power.attr, &dev_attr_fan_mode.attr, + &dev_attr_touchpad.attr, NULL }; |