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# Copyright (c) 2004 Colin Watson <cjwatson@debian.org>.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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TREE=/proc/device-tree
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# Apparently some 2.4 kernels put OF aliases in aliases@0.
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if [ -d /proc/device-tree/aliases ]; then
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elif [ -d /proc/device-tree/aliases@0 ]; then
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echo "Can't find Open Firmware aliases directory" >&2
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if [ -f "$TREE/$ALIASES/screen" ]; then
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SCREEN="`cat $TREE/$ALIASES/screen`"
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echo "Can't find Open Firmware screen alias" >&2
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# Aliases start with a slash.
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if [ -d "$TREE$SCREEN" ]; then
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# List gathered from files in drivers/video/ in the 2.6.7 kernel
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for file in DFP,EDID LCD,EDID EDID EDID1 EDID2 EDID,B EDID,A; do
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if [ -f "$TREE$SCREEN/$file" ]; then
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EDID="$TREE$SCREEN/$file"
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if [ -z "$EDID" ]; then
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echo "Can't find EDID file in $TREE$SCREEN" >&2
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echo "Can't find target of Open Firmware screen alias ($TREE$SCREEN)" >&2
added
removed
get-edid-powerpc
