diff options
Diffstat (limited to 'Documentation/usb/usbmon.txt')
| -rw-r--r-- | Documentation/usb/usbmon.txt | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/usb/usbmon.txt b/Documentation/usb/usbmon.txt index 6c3c625b7f30..66f92d1194c1 100644 --- a/Documentation/usb/usbmon.txt +++ b/Documentation/usb/usbmon.txt @@ -33,7 +33,7 @@ if usbmon is built into the kernel. Verify that bus sockets are present. -# ls /sys/kernel/debug/usbmon +# ls /sys/kernel/debug/usb/usbmon 0s 0u 1s 1t 1u 2s 2t 2u 3s 3t 3u 4s 4t 4u # @@ -58,11 +58,11 @@ Bus=03 means it's bus 3. 3. Start 'cat' -# cat /sys/kernel/debug/usbmon/3u > /tmp/1.mon.out +# cat /sys/kernel/debug/usb/usbmon/3u > /tmp/1.mon.out to listen on a single bus, otherwise, to listen on all buses, type: -# cat /sys/kernel/debug/usbmon/0u > /tmp/1.mon.out +# cat /sys/kernel/debug/usb/usbmon/0u > /tmp/1.mon.out This process will be reading until killed. Naturally, the output can be redirected to a desirable location. This is preferred, because it is going @@ -305,7 +305,7 @@ Before the call, hdr, data, and alloc should be filled. Upon return, the area pointed by hdr contains the next event structure, and the data buffer contains the data, if any. The event is removed from the kernel buffer. -The MON_IOCX_GET copies 48 bytes, MON_IOCX_GETX copies 64 bytes. +The MON_IOCX_GET copies 48 bytes to hdr area, MON_IOCX_GETX copies 64 bytes. MON_IOCX_MFETCH, defined as _IOWR(MON_IOC_MAGIC, 7, struct mon_mfetch_arg) |