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author | Jamie Lentin <jm@lentin.co.uk> | 2014-12-16 21:26:45 +0000 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2014-12-17 09:00:16 +0100 |
commit | e3cb0acd23258cf5e1a7ea270c98805eff01dcc5 (patch) | |
tree | 91f4a05fe9398b36c885ab6ac58dee0c1ae64972 /drivers/hid/hid-lenovo.c | |
parent | 0349678ccd74d16c1f2bb58ecafec13ef7110e36 (diff) | |
download | linux-e3cb0acd23258cf5e1a7ea270c98805eff01dcc5.tar.gz linux-e3cb0acd23258cf5e1a7ea270c98805eff01dcc5.tar.bz2 linux-e3cb0acd23258cf5e1a7ea270c98805eff01dcc5.zip |
HID: lenovo: Add sensitivity control to compact keyboards
The trackpoint sensitivity can also be controlled, expose this via
sysfs.
Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-lenovo.c')
-rw-r--r-- | drivers/hid/hid-lenovo.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/drivers/hid/hid-lenovo.c b/drivers/hid/hid-lenovo.c index 4c55f4d95798..0f35a76d9c90 100644 --- a/drivers/hid/hid-lenovo.c +++ b/drivers/hid/hid-lenovo.c @@ -38,6 +38,7 @@ struct lenovo_drvdata_tpkbd { struct lenovo_drvdata_cptkbd { bool fn_lock; + int sensitivity; }; #define map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c)) @@ -145,6 +146,7 @@ static void lenovo_features_set_cptkbd(struct hid_device *hdev) struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev); ret = lenovo_send_cmd_cptkbd(hdev, 0x05, cptkbd_data->fn_lock); + ret = lenovo_send_cmd_cptkbd(hdev, 0x02, cptkbd_data->sensitivity); if (ret) hid_err(hdev, "Fn-lock setting failed: %d\n", ret); } @@ -179,13 +181,50 @@ static ssize_t attr_fn_lock_store_cptkbd(struct device *dev, return count; } +static ssize_t attr_sensitivity_show_cptkbd(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev); + + return snprintf(buf, PAGE_SIZE, "%u\n", + cptkbd_data->sensitivity); +} + +static ssize_t attr_sensitivity_store_cptkbd(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev); + int value; + + if (kstrtoint(buf, 10, &value) || value < 1 || value > 255) + return -EINVAL; + + cptkbd_data->sensitivity = value; + lenovo_features_set_cptkbd(hdev); + + return count; +} + + static struct device_attribute dev_attr_fn_lock_cptkbd = __ATTR(fn_lock, S_IWUSR | S_IRUGO, attr_fn_lock_show_cptkbd, attr_fn_lock_store_cptkbd); +static struct device_attribute dev_attr_sensitivity_cptkbd = + __ATTR(sensitivity, S_IWUSR | S_IRUGO, + attr_sensitivity_show_cptkbd, + attr_sensitivity_store_cptkbd); + + static struct attribute *lenovo_attributes_cptkbd[] = { &dev_attr_fn_lock_cptkbd.attr, + &dev_attr_sensitivity_cptkbd.attr, NULL }; @@ -594,8 +633,9 @@ static int lenovo_probe_cptkbd(struct hid_device *hdev) if (ret) hid_warn(hdev, "Failed to switch F7/9/11 mode: %d\n", ret); - /* Turn Fn-Lock on by default */ + /* Set keyboard settings to known state */ cptkbd_data->fn_lock = true; + cptkbd_data->sensitivity = 0x05; lenovo_features_set_cptkbd(hdev); ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_cptkbd); |