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authorMatthew Garrett <mjg59@srcf.ucam.org>2006-01-09 20:53:01 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-10 08:01:44 -0800
commit30420f8f464975f7f26e8195f60569dfed6ac060 (patch)
treedb9f694f6fedbc984aa42144a46000a6527a8640 /drivers/video/fbsysfs.c
parentc35dba601728412f67801792107d3dddd1f3ada1 (diff)
[PATCH] Add sysfs entry to disable framebuffer access
What
Diffstat (limited to 'drivers/video/fbsysfs.c')
-rw-r--r--drivers/video/fbsysfs.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/video/fbsysfs.c b/drivers/video/fbsysfs.c
index 08dac9580d1..0a1dc1b4b50 100644
--- a/drivers/video/fbsysfs.c
+++ b/drivers/video/fbsysfs.c
@@ -492,6 +492,28 @@ static ssize_t show_name(struct class_device *class_device, char *buf)
return snprintf(buf, PAGE_SIZE, "%s\n", fb_info->fix.id);
}
+static ssize_t store_fbstate(struct class_device *class_device,
+ const char *buf, size_t count)
+{
+ struct fb_info *fb_info = class_get_devdata(class_device);
+ u32 state;
+ char *last = NULL;
+
+ state = simple_strtoul(buf, &last, 0);
+
+ acquire_console_sem();
+ fb_set_suspend(fb_info, (int)state);
+ release_console_sem();
+
+ return count;
+}
+
+static ssize_t show_fbstate(struct class_device *class_device, char *buf)
+{
+ struct fb_info *fb_info = class_get_devdata(class_device);
+ return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->state);
+}
+
static struct class_device_attribute class_device_attrs[] = {
__ATTR(bits_per_pixel, S_IRUGO|S_IWUSR, show_bpp, store_bpp),
__ATTR(blank, S_IRUGO|S_IWUSR, show_blank, store_blank),
@@ -507,6 +529,7 @@ static struct class_device_attribute class_device_attrs[] = {
__ATTR(rotate, S_IRUGO|S_IWUSR, show_rotate, store_rotate),
__ATTR(con_rotate, S_IRUGO|S_IWUSR, show_con_rotate, store_con_rotate),
__ATTR(con_rotate_all, S_IWUSR, NULL, store_con_rotate_all),
+ __ATTR(state, S_IRUGO|S_IWUSR, show_fbstate, store_fbstate),
};
int fb_init_class_device(struct fb_info *fb_info)