diff options
| author | Greg Hackmann <ghackmann@google.com> | 2013-08-15 12:51:22 -0700 |
|---|---|---|
| committer | Colin Cross <ccross@android.com> | 2014-03-19 13:10:36 -0700 |
| commit | 90b3bd128a66ddf006bcc5a1f091847e1f7840f0 (patch) | |
| tree | 2d613233402f44dba191dca1bf14bb6fa1656763 /drivers/video | |
| parent | df7eab32d98a71e4dff985b16e6c73fe7711324a (diff) | |
video: adf: make dpms_state sysfs attribute writable
Change-Id: I04e7785cbddac160003e6c9edaf62d20b367fdc9
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/adf/adf_sysfs.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/video/adf/adf_sysfs.c b/drivers/video/adf/adf_sysfs.c index 567c5599793b..076ccbd0cd88 100644 --- a/drivers/video/adf/adf_sysfs.c +++ b/drivers/video/adf/adf_sysfs.c @@ -33,6 +33,24 @@ static ssize_t dpms_state_show(struct device *dev, adf_interface_dpms_state(intf)); } +static ssize_t dpms_state_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct adf_interface *intf = dev_to_adf_interface(dev); + u8 dpms_state; + int err; + + err = kstrtou8(buf, 0, &dpms_state); + if (err < 0) + return err; + + err = adf_interface_blank(intf, dpms_state); + if (err < 0) + return err; + + return count; +} + static ssize_t current_mode_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -80,7 +98,7 @@ static ssize_t hotplug_detect_show(struct device *dev, } static struct device_attribute adf_interface_attrs[] = { - __ATTR_RO(dpms_state), + __ATTR(dpms_state, S_IRUGO|S_IWUSR, dpms_state_show, dpms_state_store), __ATTR_RO(current_mode), __ATTR_RO(hotplug_detect), __ATTR_RO(type), |