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adccmds: Continue to query analog inputs after a shutdown

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Continue to sample the ADC input pins even if the MCU goes into a
shutdown state.  This enables the printer to continue reporting
temperatures even on an mcu error.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-10-11 22:16:02 -04:00
parent 744c6d114e
commit d03cf2b83f
5 changed files with 20 additions and 10 deletions
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3
src/linux/analog.c
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@ -49,7 +49,8 @@ gpio_adc_read(struct gpio_adc g)
int ret = pread(g.fd, buf, sizeof(buf)-1, 0);
if (ret <= 0) {
report_errno("analog read", ret);
shutdown("Error on analog read");
try_shutdown("Error on analog read");
return 0;
}
buf[ret] = '\0';
return atoi(buf);