[OE-core] [PATCH 2/2] busybox/find-touchscreen.sh: Simplify script and recognize USB devices
Mike Looijmans
mike.looijmans at topic.nl
Thu Dec 4 10:27:46 UTC 2014
Simplify the grep expression, use the more common "grep" command instead
of "egrep", avoid forking extra processes, join multiple invokations into
a single combined expression.
Change the touchscreen regex so that it also recognizes various USB
touchscreen controllers and the ad7879 i2c device.
Based on code used in OpenPLi and meta-topic.
Signed-off-by: Mike Looijmans <mike.looijmans at topic.nl>
---
.../recipes-core/busybox/files/find-touchscreen.sh | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/meta/recipes-core/busybox/files/find-touchscreen.sh b/meta/recipes-core/busybox/files/find-touchscreen.sh
index 1582ea8..52c5e7a 100644
--- a/meta/recipes-core/busybox/files/find-touchscreen.sh
+++ b/meta/recipes-core/busybox/files/find-touchscreen.sh
@@ -1,9 +1,6 @@
#!/bin/sh
-if [ `egrep "input:.*-e0.*,3,.*a0,1,.*18,.*" /sys/class/input/$MDEV/device/modalias|wc -l` -gt 0 ]; then
- ln -sf /dev/input/$MDEV /dev/input/touchscreen0
+if grep -q "input:.*-e0.*,3,.*a0,1,\|ads7846" /sys/class/$MDEV/device/modalias ; then
+ ln -sf /dev/$MDEV /dev/input/touchscreen0
fi
-if [ `egrep "ads7846" /sys/class/input/$MDEV/device/modalias|wc -l` -gt 0 ]; then
- ln -sf /dev/input/$MDEV /dev/input/touchscreen0
-fi
--
1.7.9.5
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