[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>
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@ -100,13 +100,22 @@ static int mode_string(char *buf, unsigned int offset,
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const struct fb_videomode *mode)
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{
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char m = 'U';
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char v = 'p';
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if (mode->flag & FB_MODE_IS_DETAILED)
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m = 'D';
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if (mode->flag & FB_MODE_IS_VESA)
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m = 'V';
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if (mode->flag & FB_MODE_IS_STANDARD)
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m = 'S';
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return snprintf(&buf[offset], PAGE_SIZE - offset, "%c:%dx%d-%d\n", m, mode->xres, mode->yres, mode->refresh);
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if (mode->vmode & FB_VMODE_INTERLACED)
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v = 'i';
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if (mode->vmode & FB_VMODE_DOUBLE)
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v = 'd';
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return snprintf(&buf[offset], PAGE_SIZE - offset, "%c:%dx%d%c-%d\n",
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m, mode->xres, mode->yres, v, mode->refresh);
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}
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static ssize_t store_mode(struct class_device *class_device, const char * buf,
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