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path: root/drivers/video/fb.c
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Diffstat (limited to 'drivers/video/fb.c')
-rw-r--r--drivers/video/fb.c26
1 files changed, 17 insertions, 9 deletions
diff --git a/drivers/video/fb.c b/drivers/video/fb.c
index 00a0f6a177..f9a425efac 100644
--- a/drivers/video/fb.c
+++ b/drivers/video/fb.c
@@ -32,15 +32,27 @@ static int fb_enable_set(struct device_d *dev, struct param_d *param,
{
struct fb_info *info = dev->priv;
int enable;
+ char *new;
+
+ if (!val)
+ return dev_param_set_generic(dev, param, NULL);
enable = simple_strtoul(val, NULL, 0);
- if (enable)
+ if (info->enabled == !!enable)
+ return 0;
+
+ if (enable) {
info->fbops->fb_enable(info);
- else
+ new = "1";
+ } else {
info->fbops->fb_disable(info);
+ new = "0";
+ }
- sprintf(info->enable_string, "%d", !!enable);
+ dev_param_set_generic(dev, param, new);
+
+ info->enabled = !!enable;
return 0;
}
@@ -71,13 +83,9 @@ int register_framebuffer(struct fb_info *info)
sprintf(dev->name, "fb");
- info->param_enable.set = fb_enable_set;
- info->param_enable.name = "enable";
- sprintf(info->enable_string, "%d", 0);
- info->param_enable.value = info->enable_string;
- dev_add_param(dev, &info->param_enable);
-
register_device(&info->dev);
+ dev_add_param(dev, "enable", fb_enable_set, NULL, 0);
+ dev_set_param(dev, "enable", "0");
devfs_create(&info->cdev);