Plan 9 /sys/man/4/usbd

NAME

usbd – Universal Serial Bus daemon

SYNOPSIS

usbd [ –DfV ] [ –d bitmask ] [ –u root–hub–num ]

DESCRIPTION

Usbd manages the USB infrastructure, polls all ports, configures hubs and provides access to USB devices through a file system in #U. It monitors all ports, active or inactive and acts on state changes by configuring devices when they are plugged in or turned on and unconfiguring them when they are pulled out or switched off.
Usbd recognizes the following options:
d     Set USB library debugging option bitmask. A value of 1 sets Dbginfo, 2 sets Dbgfs, 4 sets Dbgproc, and 8 sets Dbgcontrol; they may be added to set multiple options.
D     Debug; print the bytes in each message sent or received.
f     Don't fork.
u     Specifies the controller number of the root hub.
V     Verbose; print configuration information and device status as they change.

SOURCE

/sys/src/cmd/usb/usbd


	`usbd` [ –`DfV` ] [ –`d` bitmask ] [ –`u` root–hub–num ]