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Diffstat (limited to 'drivers/acpi/video.c')
-rw-r--r--drivers/acpi/video.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index a4fddb24476f..64e3c581b7a9 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -285,7 +285,7 @@ static int acpi_video_device_brightness_open_fs(struct inode *inode,
struct file *file);
static ssize_t acpi_video_device_write_brightness(struct file *file,
const char __user *buffer, size_t count, loff_t *data);
-static struct file_operations acpi_video_device_brightness_fops = {
+static const struct file_operations acpi_video_device_brightness_fops = {
.owner = THIS_MODULE,
.open = acpi_video_device_brightness_open_fs,
.read = seq_read,
@@ -1109,7 +1109,12 @@ static int acpi_video_bus_check(struct acpi_video_bus *video)
*/
/* Does this device support video switching? */
- if (video->cap._DOS) {
+ if (video->cap._DOS || video->cap._DOD) {
+ if (!video->cap._DOS) {
+ printk(KERN_WARNING FW_BUG
+ "ACPI(%s) defines _DOD but not _DOS\n",
+ acpi_device_bid(video->device));
+ }
video->flags.multihead = 1;
status = 0;
}