[PATCH] Return the line length via sysfs for fbdev
From: James Simmons <hidden>
Date: 2005-10-24 20:46:23
Also in:
lkml
This small patch returns the stride/line length of the framebuffer via sysfs. Please apply. Signed-off-by: James Simmons <redacted>
--- linus-2.6/drivers/video/fbsysfs.c 2005-07-31 15:45:22.000000000 -0700
+++ fbdev-2.6/drivers/video/fbsysfs.c 2005-09-21 13:54:02.000000000 -0700@@ -242,6 +242,13 @@ 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 @@ __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)