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| author | Gerd Hoffmann <kraxel@redhat.com> | 2022-07-11 11:44:37 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2022-07-19 14:36:42 +0200 |
| commit | 04fcb215b8e61042ecd592f4920fe96faf3de36b (patch) | |
| tree | 9229b5c36d79836357df03ab422be7552d64e52e /docs | |
| parent | f3a445b68e7ed1d9fe14e3c92cfec38b1ac97331 (diff) | |
| download | qemu-04fcb215b8e61042ecd592f4920fe96faf3de36b.zip qemu-04fcb215b8e61042ecd592f4920fe96faf3de36b.tar.gz qemu-04fcb215b8e61042ecd592f4920fe96faf3de36b.tar.bz2 | |
usb: document pcap (aka usb traffic capture)
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20220711094437.3995927-3-kraxel@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/system/devices/usb.rst | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/docs/system/devices/usb.rst b/docs/system/devices/usb.rst index 18e7c8b..f39a88f 100644 --- a/docs/system/devices/usb.rst +++ b/docs/system/devices/usb.rst @@ -382,3 +382,15 @@ What works best pretty much depends on the behavior of the specific usb device at hand, so it's a trial-and-error game. If the default doesn't work, try another option and see whenever the situation improves. + +record usb transfers +^^^^^^^^^^^^^^^^^^^^ + +All usb devices have support for recording the usb traffic. This can +be enabled using the ``pcap=<file>`` property, for example: + +``-device usb-mouse,pcap=mouse.pcap`` + +The pcap files are compatible with the linux kernels usbmon. Many +tools, including ``wireshark``, can decode and inspect these trace +files. |