diff options
Diffstat (limited to 'udevtest.c')
| -rw-r--r-- | udevtest.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/udevtest.c b/udevtest.c index 37ec767e13..9cc23f0ac7 100644 --- a/udevtest.c +++ b/udevtest.c @@ -55,19 +55,23 @@ int main(int argc, char *argv[], char *envp[]) char *devpath; char path[SYSFS_PATH_MAX]; char temp[NAME_SIZE]; - char *subsystem = ""; struct udevice udev; + char *subsystem = NULL; info("version %s", UDEV_VERSION); - if (argv[1] == NULL) { - info("udevinfo expects the DEVPATH of the sysfs device as a argument"); + if (argc < 2 || argc > 3) { + info("Usage: udevtest <devpath> [subsystem]"); return 1; } + /* initialize our configuration */ + udev_init_config(); + /* remove sysfs_path if given */ - if (strncmp(argv[1], sysfs_path, strlen(sysfs_path)) == 0) - devpath = argv[1] + strlen(sysfs_path); + if (strncmp(argv[1], sysfs_path, strlen(sysfs_path)) == 0) { + devpath = &argv[1][strlen(sysfs_path)] ; + } else if (argv[1][0] != '/') { /* prepend '/' if missing */ @@ -86,13 +90,10 @@ int main(int argc, char *argv[], char *envp[]) return 2; } - /* initialize our configuration */ - udev_init_config(); - /* initialize the naming deamon */ namedev_init(); - if (argv[2] != NULL) + if (argc == 3) subsystem = argv[2]; /* fill in values and test_run flag*/ |