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Code

udevtrigger: trigger "driver" events

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This commit is contained in:
Kay Sievers 2007-07-27 03:34:31 +02:00
parent f4dce170d5
commit 584fbf1ba4
1 changed files with 40 additions and 12 deletions
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52
udevtrigger.c
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@ -237,11 +237,24 @@ static int attr_filtered(const char *path)
return 0;
}
static void scan_subsystem(const char *subsys)
enum scan_type {
SCAN_DEVICES,
SCAN_SUBSYSTEM,
};
static void scan_subsystem(const char *subsys, enum scan_type scan)
{
char base[PATH_SIZE];
DIR *dir;
struct dirent *dent;
const char *subdir;
if (scan == SCAN_DEVICES)
subdir = "/devices";
else if (scan == SCAN_SUBSYSTEM)
subdir = "/drivers";
else
return;
strlcpy(base, sysfs_path, sizeof(base));
strlcat(base, "/", sizeof(base));
@ -257,15 +270,24 @@ static void scan_subsystem(const char *subsys)
if (dent->d_name[0] == '.')
continue;
if (subsystem_filtered(dent->d_name))
continue;
if (scan == SCAN_DEVICES)
if (subsystem_filtered(dent->d_name))
continue;
strlcpy(dirname, base, sizeof(dirname));
strlcat(dirname, "/", sizeof(dirname));
strlcat(dirname, dent->d_name, sizeof(dirname));
strlcat(dirname, "/devices", sizeof(dirname));
/* look for devices */
if (scan == SCAN_SUBSYSTEM) {
if (!subsystem_filtered("subsystem"))
device_list_insert(dirname);
if (subsystem_filtered("drivers"))
continue;
}
strlcat(dirname, subdir, sizeof(dirname));
/* look for devices/drivers */
dir2 = opendir(dirname);
if (dir2 != NULL) {
for (dent2 = readdir(dir2); dent2 != NULL; dent2 = readdir(dir2)) {
@ -494,19 +516,25 @@ int main(int argc, char *argv[], char *envp[])
}
}
if (failed)
if (failed) {
scan_failed();
else {
exec_list(action);
} else {
char base[PATH_SIZE];
struct stat statbuf;
/* if we have /sys/subsystem, forget all the old stuff */
strlcpy(base, sysfs_path, sizeof(base));
strlcat(base, "/subsystem", sizeof(base));
if (stat(base, &statbuf) == 0)
scan_subsystem("subsystem");
else {
scan_subsystem("bus");
if (stat(base, &statbuf) == 0) {
scan_subsystem("subsystem", SCAN_SUBSYSTEM);
exec_list(action);
scan_subsystem("subsystem", SCAN_DEVICES);
exec_list(action);
} else {
scan_subsystem("bus", SCAN_SUBSYSTEM);
exec_list(action);
scan_subsystem("bus", SCAN_DEVICES);
scan_class();
/* scan "block" if it isn't a "class" */
@ -514,9 +542,9 @@ int main(int argc, char *argv[], char *envp[])
strlcat(base, "/class/block", sizeof(base));
if (stat(base, &statbuf) != 0)
scan_block();
exec_list(action);
}
}
exec_list(action);
exit:
name_list_cleanup(&filter_subsystem_match_list);