diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/system/devices/usb.rst | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/docs/system/devices/usb.rst b/docs/system/devices/usb.rst index f39a88f080..37cb9b33ae 100644 --- a/docs/system/devices/usb.rst +++ b/docs/system/devices/usb.rst @@ -178,8 +178,20 @@ option or the ``device_add`` monitor command. Available devices are: host character device id. ``usb-braille,chardev=id`` - Braille device. This will use BrlAPI to display the braille output on - a real or fake device referenced by id. + Braille device. This emulates a Baum Braille device USB port. id has to + specify a character device defined with ``-chardev …,id=id``. One will + normally use BrlAPI to display the braille output on a BRLTTY-supported + device with + + .. parsed-literal:: + + |qemu_system| [...] -chardev braille,id=brl -device usb-braille,chardev=brl + + or alternatively, use the following equivalent shortcut: + + .. parsed-literal:: + + |qemu_system| [...] -usbdevice braille ``usb-net[,netdev=id]`` Network adapter that supports CDC ethernet and RNDIS protocols. id |