diff options
| author | James Simmons <jsimmons@infradead.org> | 2005-10-24 21:46:21 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-24 14:08:29 -0700 |
| commit | c14e2cfc18659c6ca67c2e10417c432eb978d976 (patch) | |
| tree | 98cb56244406f8fb29c667aff59ffaf63dea1b9d /drivers/video/fbsysfs.c | |
| parent | d5c5d8fe32a4b9b14363c6031061e98e26da59a2 (diff) | |
| download | lwn-c14e2cfc18659c6ca67c2e10417c432eb978d976.tar.gz lwn-c14e2cfc18659c6ca67c2e10417c432eb978d976.zip | |
[PATCH] Return the line length via sysfs for fbdev
This small patch returns the stride/line length of the framebuffer via
sysfs.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video/fbsysfs.c')
| -rw-r--r-- | drivers/video/fbsysfs.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/video/fbsysfs.c b/drivers/video/fbsysfs.c index 1147b899f007..007c8e9b2b39 100644 --- a/drivers/video/fbsysfs.c +++ b/drivers/video/fbsysfs.c @@ -242,6 +242,13 @@ static ssize_t show_virtual(struct class_device *class_device, char *buf) fb_info->var.yres_virtual); } +static ssize_t show_stride(struct class_device *class_device, char *buf) +{ + struct fb_info *fb_info = + (struct fb_info *)class_get_devdata(class_device); + return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->fix.line_length); +} + /* Format for cmap is "%02x%c%4x%4x%4x\n" */ /* %02x entry %c transp %4x red %4x blue %4x green \n */ /* 256 rows at 16 chars equals 4096, the normal page size */ @@ -432,6 +439,7 @@ static struct class_device_attribute class_device_attrs[] = { __ATTR(pan, S_IRUGO|S_IWUSR, show_pan, store_pan), __ATTR(virtual_size, S_IRUGO|S_IWUSR, show_virtual, store_virtual), __ATTR(name, S_IRUGO, show_name, NULL), + __ATTR(stride, S_IRUGO, show_stride, NULL), }; int fb_init_class_device(struct fb_info *fb_info) |