Quote:
Originally Posted by vinothkumars
I am working on SIMCOM GSM module. I am trying to execute AT command in this module. But, I am unable access this module.
toradex_apalis6q:/ # cat /dev/ttyUSB3 &
[1] 1079
/system/bin/sh: cat: /dev/ttyUSB3: Try again
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It's not clear (to me) what you're trying to do.
I'm pretty sure that the cat command is not going to work on /dev/anything. cat is for concatenating or displaying
files
Why are you running the command in background?
