[thirdparty/systemd.git] / extras / inputdev.sh

#!/bin/sh -e
#
# Scans /proc/bus/input/devices for the given device.
#
# (c) 2004 Darren Salt <linux@youmustbejoking.demon.co.uk>
# GPL v2 or later applies.

[ "$1" ] || exit 0

# input device name, less leading "input/"
DEVICE=${1#input/}

# "|"-separated list.
# The first found in the given device's "N:" line will be output.
DEFAULT_KEYWORDS='dvb|saa7134'
KEYWORDS=${2:-$DEFAULT_KEYWORDS}

exec sed -nre '
  /^I:/ {
    : gather
    N
    /\nH:/! b gather
    /'"$DEVICE"'/ {
      s/^.*\nN:[^\n]*("|\b)('"$KEYWORDS"')("|\b)[^\n]*\n.*$/inputdev/
      T
      p
    }
  }
' < /proc/bus/input/devices
Commit	Line	Data
29afcc5f GKH	1	#!/bin/sh -e
	2	#
	3	# Scans /proc/bus/input/devices for the given device.
	4	#
	5	# (c) 2004 Darren Salt <linux@youmustbejoking.demon.co.uk>
	6	# GPL v2 or later applies.
	7
	8	[ "$1" ] \|\| exit 0
	9
	10	# input device name, less leading "input/"
	11	DEVICE=${1#input/}
	12
	13	# "\|"-separated list.
	14	# The first found in the given device's "N:" line will be output.
	15	DEFAULT_KEYWORDS='dvb\|saa7134'
	16	KEYWORDS=${2:-$DEFAULT_KEYWORDS}
	17
	18	exec sed -nre '
	19	/^I:/ {
	20	: gather
	21	N
	22	/\nH:/! b gather
	23	/'"$DEVICE"'/ {
	24	s/^.\nN:[^\n]("\|\b)('"$KEYWORDS"')("\|\b)[^\n]\n.$/inputdev/
	25	T
	26	p
	27	}
	28	}
	29	' < /proc/bus/input/devices
	30