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#!/bin/sh
PREREQ=""
prereqs()
{
echo "$PREREQ"
}
case $1 in
# get pre-requisites
prereqs)
prereqs
exit 0
;;
esac
# The options part of the kernel "video=" argument (i.e. everyting
# after "video=<fbdriver>:") has very inconsistent rules.
#
# Generally the following applies:
# 1) options are comma-separated
# 2) options can be in either of these three forms:
# <arg>=<value>, <arg>:<value>, <boolean-arg>.
# 3) the "mode" option has the form <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m]
# and may or may not start with "mode="
#
# When the options are used with modules, they need to be space-separated
# and the following conversions are needed:
# <arg>:<value> -> <arg>=<value>
# <boolean-arg> -> <boolean-arg>=1
# <modevalue> -> mode=<modevalue>
parse_video_opts()
{
local OPTS="$1"
local IFS=","
# Must be a line like video=<fbdriver>:<opt1>,[opt2]...
if [ "$OPTS" = "${OPTS%%:*}" ]; then
return
fi
OPTS="${OPTS#*:}"
for opt in $OPTS; do
# Already in the "<arg>=<value>" form
if [ "$opt" != "${opt#*=}" ]; then
echo -n "$opt "
# Presumably a modevalue without the "mode=" prefix
elif [ "$opt" != "${opt#[[:digit:]]*x[[:digit:]]}"; then
echo -n "mode=$opt "
# Presumably a boolean
else
echo -n "$opt=1 "
fi
done
}
FB=""
OPTS=""
SPLASH=false;
VESA=false;
for x in $(cat /proc/cmdline); do
case $x in
splash*)
FB="vga16fb";
OPTS="";
;;
vga=*)
FB="vesafb";
OPTS="";
;;
video=*)
FB=${x#*=}
FB="${FB%%:*}"
OPTS="$(parse_video_opts "$TMP")"
esac
done
if [ -n "$FB" ]; then
modprobe -q $FB $OPTS
fi
if [ -e /proc/fb ]; then
while read fbno desc; do
mknod /dev/fb$fbno 29 $fbno
done < /proc/fb
mknod /dev/fb0 c 29 0
for i in 0 1 2 3 4 5 6 7 8; do
mknod /dev/tty$i c 4 $i
done
fi
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