diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/auxdisplay/line-display.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/auxdisplay/line-display.c b/drivers/auxdisplay/line-display.c index 73e4e77ea4f9..7f3e53e2847b 100644 --- a/drivers/auxdisplay/line-display.c +++ b/drivers/auxdisplay/line-display.c @@ -178,6 +178,16 @@ static ssize_t message_store(struct device *dev, struct device_attribute *attr, static DEVICE_ATTR_RW(message); +static ssize_t num_chars_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct linedisp *linedisp = to_linedisp(dev); + + return sysfs_emit(buf, "%u\n", linedisp->num_chars); +} + +static DEVICE_ATTR_RO(num_chars); + static ssize_t scroll_step_ms_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -240,6 +250,7 @@ static DEVICE_ATTR(map_seg14, 0644, map_seg_show, map_seg_store); static struct attribute *linedisp_attrs[] = { &dev_attr_message.attr, + &dev_attr_num_chars.attr, &dev_attr_scroll_step_ms.attr, &dev_attr_map_seg7.attr, &dev_attr_map_seg14.attr, |