diff options
| author | Thomas De Schampheleire <patrickdepinguin+buildroot@gmail.com> | 2011-02-23 17:44:41 +0100 |
|---|---|---|
| committer | Peter Korsgaard <jacmet@sunsite.dk> | 2011-02-23 23:37:36 +0100 |
| commit | a85971a68b6661327e21f44ce50925b220997dbb (patch) | |
| tree | ecdffabb47dba84c6d007f105fbda0a9fc5f7910 /package/makedevs/makedevs.c | |
| parent | d17c1652808829bfc354683854c7170b90f7f127 (diff) | |
makedevs: fix cases where (start != 0)
The makedevs script did not always generate the requested set of device names / minor number series.
* If start != 0, then requesting (count) devices would generate only (count - start)
* If start != 0 && increment != 1, then requesting minors starting with (minor) would generate minors starting with (minor + (start * (increment - 1)))
This patch fixes the code and updates the usage text with extra examples.
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Diffstat (limited to 'package/makedevs/makedevs.c')
| -rw-r--r-- | package/makedevs/makedevs.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/package/makedevs/makedevs.c b/package/makedevs/makedevs.c index a0e745037..79cfc609b 100644 --- a/package/makedevs/makedevs.c +++ b/package/makedevs/makedevs.c @@ -345,14 +345,22 @@ void bb_show_usage(void) fprintf(stderr, "/dev/null c 666 0 0 1 3 0 0 -\n"); fprintf(stderr, "/dev/zero c 666 0 0 1 5 0 0 -\n"); fprintf(stderr, "/dev/hda b 640 0 0 3 0 0 0 -\n"); - fprintf(stderr, "/dev/hda b 640 0 0 3 1 1 1 15\n\n"); + fprintf(stderr, "/dev/hda b 640 0 0 3 1 1 1 15\n"); + fprintf(stderr, "/dev/rtp b 640 0 0 250 0 0 1 5\n"); + fprintf(stderr, "/dev/gps b 640 0 0 251 0 1 1 5\n"); + fprintf(stderr, "/dev/uio b 640 0 0 252 0 1 2 5\n"); + fprintf(stderr, "/dev/uio b 640 0 0 252 1 6 2 5\n\n"); fprintf(stderr, "Will Produce:\n"); fprintf(stderr, "/dev\n"); fprintf(stderr, "/dev/console\n"); fprintf(stderr, "/dev/null\n"); fprintf(stderr, "/dev/zero\n"); fprintf(stderr, "/dev/hda\n"); - fprintf(stderr, "/dev/hda[0-15]\n"); + fprintf(stderr, "/dev/hda[1-15] with minor numbers [1-15]\n"); + fprintf(stderr, "/dev/rtp[0-4] with minor numbers [0-4]\n"); + fprintf(stderr, "/dev/gps[1-5] with minor numbers [0-4]\n"); + fprintf(stderr, "/dev/uio[1-5] with minor numbers 0,2,4,6,8\n"); + fprintf(stderr, "/dev/uio[6-10] with minor numbers 1,3,5,7,9\n"); exit(1); } @@ -489,9 +497,9 @@ int main(int argc, char **argv) char *full_name_inc; full_name_inc = xmalloc(strlen(full_name) + 8); - for (i = start; i < count; i++) { - sprintf(full_name_inc, "%s%d", full_name, i); - rdev = makedev(major, minor + (i * increment - start)); + for (i = 0; i < count; i++) { + sprintf(full_name_inc, "%s%d", full_name, start + i); + rdev = makedev(major, minor + i * increment); if (mknod(full_name_inc, mode, rdev) == -1) { bb_perror_msg("line %d: Couldnt create node %s", linenum, full_name_inc); ret = EXIT_FAILURE; |