Files
ltunify/usbmon-setperms
Peter Wu 222301408b usbmon-setperms: do not grant unnecessary write
Also convert tabs to spaces.
2014-03-18 21:04:09 +01:00

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#!/bin/sh
# helper for allowing the developer to read usbmon as non-root.
if [ "$USER" = "root" ]; then
echo "Please run as regular user or set USER"
exit 1
fi
GROUP="$(id -g)"
if [ $GROUP = 0 ]; then
GROUP="$(id -g "$USER")"
fi
if [ ! -e /dev/usbmon0 ]; then
echo "Attempting to modprobe usbmon..."
sudo modprobe -v usbmon
if [ ! -e /dev/usbmon0 ]; then
echo "Cannot locate 'usbmon' kernel module"
exit 1
fi
fi
usbmons=$(lsusb -d046d: | cut -c7 | sed 's,^,/dev/usbmon,' | sort -u)
echo Found devices: $usbmons
usbmonsw=
for dev in $usbmons; do
if [ ! -r "$dev" ]; then
usbmonsw="$usbmonsw $dev"
fi
done
if [ -n "$usbmonsw" ]; then
echo "Attempting to make $usbmonsw readable"
sudo chgrp -v $GROUP $usbmonsw
sudo chmod -v g+r $usbmonsw
else
echo "No devices found"
fi