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authorJan Klötzke <jan@kloetzke.net>2019-12-16 22:56:54 +0100
committerDenys Vlasenko <vda.linux@googlemail.com>2020-11-22 14:33:58 +0100
commit768153bf8cc84a1a53166a9fe538de9484cdc8d1 (patch)
tree561738f5ae509fa6398a52857dc3fa8bf11589f1
parente9003caf6dce05034147bb6382b17154d428f575 (diff)
downloadbusybox-768153bf8cc84a1a53166a9fe538de9484cdc8d1.tar.gz
mdev: add -v to increase log verbosity
If logging to stderr and/or syslog the -v option can be given one or more times to increase the log verbosity. If mdev is used as hotplug helper the log level is fixed set to 2 if mdev.log is found an appended because there is no possiblity to pass arguments to the hotplug helper. Signed-off-by: Jan Klötzke <jan@kloetzke.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--util-linux/mdev.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/util-linux/mdev.c b/util-linux/mdev.c
index a67baf32e..66cff6e9c 100644
--- a/util-linux/mdev.c
+++ b/util-linux/mdev.c
@@ -80,7 +80,7 @@
//kbuild:lib-$(CONFIG_MDEV) += mdev.o
//usage:#define mdev_trivial_usage
-//usage: "[-S] " IF_FEATURE_MDEV_DAEMON("[") "[-s]" IF_FEATURE_MDEV_DAEMON(" | [-df]]")
+//usage: "[-Sv] " IF_FEATURE_MDEV_DAEMON("[") "[-s]" IF_FEATURE_MDEV_DAEMON(" | [-df]]")
//usage:#define mdev_full_usage "\n\n"
//usage: "mdev -s is to be run during boot to scan /sys and populate /dev.\n"
//usage: IF_FEATURE_MDEV_DAEMON(
@@ -90,6 +90,7 @@
//usage: "\n"
//usage: "optional arguments:\n"
//usage: " -S: Log to syslog too\n"
+//usage: " -v: Increase log verbosity\n"
//usage: "\n"
//usage: "Bare mdev is a kernel hotplug helper. To activate it:\n"
//usage: " echo /sbin/mdev >/proc/sys/kernel/hotplug\n"
@@ -297,7 +298,7 @@ struct rule {
struct globals {
int root_major, root_minor;
- smallint verbose;
+ int verbose;
char *subsystem;
char *subsys_env; /* for putenv("SUBSYSTEM=subsystem") */
#if ENABLE_FEATURE_MDEV_CONF
@@ -1259,7 +1260,11 @@ int mdev_main(int argc UNUSED_PARAM, char **argv)
xchdir("/dev");
- opt = getopt32(argv, "sS" IF_FEATURE_MDEV_DAEMON("df"));
+ opt = getopt32(argv, "^"
+ "sS" IF_FEATURE_MDEV_DAEMON("df") "v"
+ "\0"
+ "vv",
+ &G.verbose);
#if ENABLE_FEATURE_MDEV_CONF
G.filename = "/etc/mdev.conf";