From a85971a68b6661327e21f44ce50925b220997dbb Mon Sep 17 00:00:00 2001 From: Thomas De Schampheleire Date: Wed, 23 Feb 2011 17:44:41 +0100 Subject: 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 Signed-off-by: Peter Korsgaard --- package/makedevs/makedevs.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) (limited to 'package') 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; -- cgit v1.2.3