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[media] DocBook: fix incorrect code example

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The code said for (i = 0; i > 30; ++i) instead of i < 30.

Fix this and clean it up a bit at the same time.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Hans Verkuil
2014-02-23 20:12:46 -03:00
committed by Mauro Carvalho Chehab
parent 078c580cb4
commit 26092ffb72
1 changed files with 11 additions and 11 deletions
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22
Documentation/DocBook/media/v4l/dev-osd.xml
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@ -56,18 +56,18 @@ framebuffer device.</para>
unsigned int i; unsigned int i;
int fb_fd; int fb_fd;
if (-1 == ioctl (fd, VIDIOC_G_FBUF, &amp;fbuf)) { if (-1 == ioctl(fd, VIDIOC_G_FBUF, &amp;fbuf)) {
perror ("VIDIOC_G_FBUF"); perror("VIDIOC_G_FBUF");
exit (EXIT_FAILURE); exit(EXIT_FAILURE);
} }
for (i = 0; i &gt; 30; ++i) { for (i = 0; i &lt; 30; i++) {
char dev_name[16]; char dev_name[16];
struct fb_fix_screeninfo si; struct fb_fix_screeninfo si;
snprintf (dev_name, sizeof (dev_name), "/dev/fb%u", i); snprintf(dev_name, sizeof(dev_name), "/dev/fb%u", i);
fb_fd = open (dev_name, O_RDWR); fb_fd = open(dev_name, O_RDWR);
if (-1 == fb_fd) { if (-1 == fb_fd) {
switch (errno) { switch (errno) {
case ENOENT: /* no such file */ case ENOENT: /* no such file */
@ -75,19 +75,19 @@ for (i = 0; i &gt; 30; ++i) {
continue; continue;
default: default:
perror ("open"); perror("open");
exit (EXIT_FAILURE); exit(EXIT_FAILURE);
} }
} }
if (0 == ioctl (fb_fd, FBIOGET_FSCREENINFO, &amp;si)) { if (0 == ioctl(fb_fd, FBIOGET_FSCREENINFO, &amp;si)) {
if (si.smem_start == (unsigned long) fbuf.base) if (si.smem_start == (unsigned long)fbuf.base)
break; break;
} else { } else {
/* Apparently not a framebuffer device. */ /* Apparently not a framebuffer device. */
} }
close (fb_fd); close(fb_fd);
fb_fd = -1; fb_fd = -1;
} }