diff options
Diffstat (limited to 'usr.sbin/usbdump/usbdump.8')
| -rw-r--r-- | usr.sbin/usbdump/usbdump.8 | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/usr.sbin/usbdump/usbdump.8 b/usr.sbin/usbdump/usbdump.8 index 104c3b3..d95f4b9 100644 --- a/usr.sbin/usbdump/usbdump.8 +++ b/usr.sbin/usbdump/usbdump.8 @@ -25,7 +25,7 @@ .\" .\" $FreeBSD$ .\" -.Dd May 31, 2011 +.Dd February 16, 2012 .Dt USBDUMP 8 .Os .Sh NAME @@ -38,6 +38,7 @@ .Op Fl s Ar snaplen .Op Fl v .Op Fl w Ar file +.Op Fl f Ar filter .Sh DESCRIPTION The .Nm @@ -61,6 +62,16 @@ When defined multiple times the verbosity level increases. .It Fl w Ar file Write the raw packets to .Ar file . +.It Fl f Ar filter +The filter argument consists of either one or two numbers separated by a dot. +The first indicates the device unit number which should be traced. +The second number which is optional indicates the endpoint which should be traced. +To get all traffic for the control endpoint, two filters should be +created, one for endpoint 0 and one for endpoint 128. +If 128 is added to the endpoint number that means IN direction, else OUT direction is implied. +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. .El .Sh EXAMPLES Capture the USB raw packets on usbus2: @@ -72,6 +83,11 @@ size limit: .Pp .Dl "usbdump -i usbus2 -s 0 -w /tmp/dump_pkts" .Pp +Dump the USB raw packets of usbus2, but only the control endpoint traffic +of device unit number 3: +.Pp +.Dl "usbdump -i usbus2 -s 0 -f 3.0 -f 3.128 -w /tmp/dump_pkts" +.Pp Read and display the USB raw packets from previous file: .Pp .Dl "usbdump -r /tmp/dump_pkts -v" |
