diff options
-rw-r--r-- | usr.sbin/usbdump/usbdump.8 | 3 | ||||
-rw-r--r-- | usr.sbin/usbdump/usbdump.c | 3 |
2 files changed, 5 insertions, 1 deletions
diff --git a/usr.sbin/usbdump/usbdump.8 b/usr.sbin/usbdump/usbdump.8 index eec13b8..05ff3f9 100644 --- a/usr.sbin/usbdump/usbdump.8 +++ b/usr.sbin/usbdump/usbdump.8 @@ -40,6 +40,7 @@ .Op Fl w Ar file .Op Fl f Ar filter .Op Fl b Ar file +.Op Fl h .Sh DESCRIPTION The .Nm @@ -79,6 +80,8 @@ If 128 is added to the endpoint number that means IN direction, else OUT directi A device unit or endpoint value of -1 means ignore this field. If no filters are specified, all packets are passed through using the default -1,-1 filter. This option can be specified multiple times. +.It Fl h +This option displays a summary of the command line options. .El .Sh EXAMPLES Capture the USB raw packets on usbus2: diff --git a/usr.sbin/usbdump/usbdump.c b/usr.sbin/usbdump/usbdump.c index c26d831..1e8d171 100644 --- a/usr.sbin/usbdump/usbdump.c +++ b/usr.sbin/usbdump/usbdump.c @@ -775,6 +775,7 @@ usage(void) fprintf(stderr, FMT, "-v", "Increase the verbose level"); fprintf(stderr, FMT, "-b <file>", "Save raw version of all recorded data to file"); fprintf(stderr, FMT, "-w <file>", "Write the raw packets to file"); + fprintf(stderr, FMT, "-h", "Display summary of command line options"); #undef FMT exit(EX_USAGE); } @@ -797,7 +798,7 @@ main(int argc, char *argv[]) const char *optstring; char *pp; - optstring = "b:i:r:s:vw:f:"; + optstring = "b:hi:r:s:vw:f:"; while ((o = getopt(argc, argv, optstring)) != -1) { switch (o) { case 'i': |