Hi busybox list,
I'm running the following command under strace (thanks Rob):
echo 56 > /sys/class/gpio/export
and I see the following output:
write(1, "56\n", 3) = -1 EBUSY (Device or resource busy)
write(1, "5", 1) = 1
The first EBUSY is OK, since GPIO 56 is already requested. But the second
write() attempt seems strange, and leads to an unwanted outcome. GPIO 5 gets
exported.
Looking into the code it seems like the fflush() call at the end for
echo_main() is somehow responsible for this, but this is only a guess.
I have FEATURE_FANCY_ECHO enabled, FWIW.
Any suggestion?
baruch
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