fbdev: tag by scantype in sysfs
PATCH 1/1 fbdev: tag by scantype in sysfs
From: Daniel R Thompson <[email protected]>
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 <[email protected]>
Signed-off-by Antonino Daplas <[email protected]>
---
drivers/video/fbsysfs.c | 11 ++++++++++- 1 files changed, 10 insertions(+), 1 deletions(-)
drivers/video/fbsysfs.c +10 -1
@@ -100,13 +100,22 @@ static int mode_string(char *buf, unsign 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,
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