code: plan9front

ref: a14f9efa6848f167f54dea3e3823b31dae1461c9
dir: /sys/src/9/boot/nusbrc/

#!/bin/rc
if(! bind -a '#u' /dev)
	exit

mkdir -p -m 700 '#σc/usb'
mkdir -p -m 700 '#σc/usbnet'

if(! nusb/usbd)
	exit

@{
	rfork ne
	fn attach {
		id=$1
		if(~ $#* 5 && ! test -e /env/nousbhname)
			id=$1:$5
		switch($2$3){
		case 0b957720 0b95772a 0db0a877 13b10018 15577720 20013c05 07d13c05 05ac1402
			nusb/ether -t a88772 $etherargs $id
		case 0b951780 14eaab11 17370039 0411006e 050d5055
			nusb/ether -t a88178 $etherargs $id
		case 2001abc1
			nusb/ether -t aue $etherargs $id
		case 0bda8150
			nusb/ether -t url $etherargs $id
		case 18d14ee3 0bb40003 10046344
			nusb/ether -t rndis $etherargs $id
		case 12092301 # keyboardio model 01 (IAD)
			nusb/kb $id
		# prevent attachment to nusb/kb for:
		case 054c0268 # sony dualshock 3 (ps3) controller
		case *
			switch($4){
			case *03
				nusb/kb $id
			case ff0202 0104ef 0301e0
				nusb/ether -t rndis $etherargs $id
			case *02
				# CDC ethernet
				nusb/ether $etherargs $id
			case *08
				if(nusb/disk $id) @{
					rfork ne
					cd '#σ/usb'
					devs=sdU^($1 $5)
					for(dev in $devs $devs.*) if(test -d $dev) {
						diskparts $dev
						for(part in $dev/dos* $dev/9fat* $dev/data) if(test -r $part && ~ `{fstype $part} dos) {
							mkdir -m 0700 '#σc/'^$dev || exit
							{dossrv -s -f $part <[0=1] &} |
								echo 0 >'#σc/'^$dev/dos
							exit
						}
					}
				}
			case *
				# Raspberry Pi ethernet will always appear as /net/etherU0
				if(~ $2 0424){
					if(~ $3 7800)
						nusb/ether -t lan78xx $etherargs $1:0
					if not
						nusb/ether -t smsc $etherargs $1:0
				}
			}
		}
	}
	fn detach {
		devs='#σc/sdU'^($1 $5)
		rm -rf '#σc/usb/'^$1.* '#σc/usb/'^$5.hid '#σc/usbnet/'^$1.* $devs $devs.*
	}
	rc < '#σ/usb/usbevent' &
}

# usbd removes this file once all devices have been enumerated
while(test -e /env/usbbusy)
	sleep 1

bind -a '#σ/usb' /dev
bind -a '#σ/usbnet' /net