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Fix systemd-udevd rule warning (#1136)

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systemd-udevd substitutes variables starting with $ in the PROGRAM
argument. If a shell variable is to be used, two $ need to be used to
escape properly. This fixes three instances of the following warning:
Invalid value "..." for PROGRAM (char 58: invalid substitution type), ignoring, but please fix it.
This commit is contained in:
Stefan Agner 2020-12-29 20:57:29 +01:00 committed by GitHub
parent 594c24eab7
commit 381d2aa8f7
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 6 deletions
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12
buildroot-external/board/raspberrypi/rootfs-overlay/usr/lib/udev/rules.d/99-com.rules
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@ -1,9 +1,9 @@
KERNEL=="ttyAMA0", PROGRAM="/bin/sh -c '\
ALIASES=/proc/device-tree/aliases; \
if cmp -s $ALIASES/uart0 $ALIASES/serial0; then \
if cmp -s $$ALIASES/uart0 $$ALIASES/serial0; then \
echo 0;\
elif cmp -s $ALIASES/uart0 $ALIASES/serial1; then \
elif cmp -s $$ALIASES/uart0 $$ALIASES/serial1; then \
echo 1; \
else \
exit 1; \
@ -14,9 +14,9 @@ KERNEL=="ttyAMA1", PROGRAM="/bin/sh -c '\
ALIASES=/proc/device-tree/aliases; \
if [ -e /dev/ttyAMA0 ]; then \
exit 1; \
elif cmp -s $ALIASES/uart0 $ALIASES/serial0; then \
elif cmp -s $$ALIASES/uart0 $$ALIASES/serial0; then \
echo 0;\
elif cmp -s $ALIASES/uart0 $ALIASES/serial1; then \
elif cmp -s $$ALIASES/uart0 $$ALIASES/serial1; then \
echo 1; \
else \
exit 1; \
@ -25,9 +25,9 @@ KERNEL=="ttyAMA1", PROGRAM="/bin/sh -c '\
KERNEL=="ttyS0", PROGRAM="/bin/sh -c '\
ALIASES=/proc/device-tree/aliases; \
if cmp -s $ALIASES/uart1 $ALIASES/serial0; then \
if cmp -s $$ALIASES/uart1 $$ALIASES/serial0; then \
echo 0; \
elif cmp -s $ALIASES/uart1 $ALIASES/serial1; then \
elif cmp -s $$ALIASES/uart1 $$ALIASES/serial1; then \
echo 1; \
else \
exit 1; \