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authorDaniel R Thompson <daniel.thompson@st.com>2006-06-26 11:27:00 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 20:58:32 +0400
commit9dac73a4ec2c0a791bbfc6630dc4629ce11e68b9 (patch)
treec09c03d8d02f351d49fc1f60cd3bb74e13acd735 /drivers/video/fbsysfs.c
parent90b4f9aca4d124d114e02bbb3d1d4f3d1d47138f (diff)
downloadlinux-9dac73a4ec2c0a791bbfc6630dc4629ce11e68b9.tar.xz
[PATCH] fbdev: tag by scantype in sysfs
Modify the sysfs description of a video mode such that modes are tagged with their scan type, (p)rogessive, (i)nterlaced, (d)ouble scan. For example, U:1920x1080i-50. This is useful to disambiguate some of the 'consumer' video timings found in CEA-861 (especially those for EDTV). Signed-off-by: Daniel R Thompson <daniel.thompson@st.com> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video/fbsysfs.c')
-rw-r--r--drivers/video/fbsysfs.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/video/fbsysfs.c b/drivers/video/fbsysfs.c
index 3ceb8c1b392e..6de02189abbe 100644
--- a/drivers/video/fbsysfs.c
+++ b/drivers/video/fbsysfs.c
@@ -100,13 +100,22 @@ static int mode_string(char *buf, unsigned int offset,
const struct fb_videomode *mode)
{
char m = 'U';
+ char v = 'p';
+
if (mode->flag & FB_MODE_IS_DETAILED)
m = 'D';
if (mode->flag & FB_MODE_IS_VESA)
m = 'V';
if (mode->flag & FB_MODE_IS_STANDARD)
m = 'S';
- return snprintf(&buf[offset], PAGE_SIZE - offset, "%c:%dx%d-%d\n", m, mode->xres, mode->yres, mode->refresh);
+
+ if (mode->vmode & FB_VMODE_INTERLACED)
+ v = 'i';
+ if (mode->vmode & FB_VMODE_DOUBLE)
+ v = 'd';
+
+ return snprintf(&buf[offset], PAGE_SIZE - offset, "%c:%dx%d%c-%d\n",
+ m, mode->xres, mode->yres, v, mode->refresh);
}
static ssize_t store_mode(struct class_device *class_device, const char * buf,