0

So i need to use '/dev/ttyACM0'. I try to show all USB option available with: ~$ sudo dmesg | grep tty, and i get

[    0.098062] printk: console [tty0] enabled
[  291.890275] cdc_acm 2-1.3:1.0: ttyACM0: USB ACM device
[  825.280387] cdc_acm 2-1.2:1.0: ttyACM0: USB ACM device
[ 1071.046356] cdc_acm 2-1.2:1.0: ttyACM0: USB ACM device
[ 1143.484587] cdc_acm 2-1.2:1.0: ttyACM0: USB ACM device
[ 1467.838416] cdc_acm 2-1.2:1.0: ttyACM0: USB ACM device
[ 2074.551625] cdc_acm 2-1.2:1.0: ttyACM0: USB ACM device
[ 2137.536720] cdc_acm 2-1.2:1.0: ttyACM0: USB ACM device
[ 2196.153047] cdc_acm 2-1.2:1.0: ttyACM0: USB ACM device
[ 2307.305412] cdc_acm 2-1.2:1.0: ttyACM0: USB ACM device

But when i try sudo chmod -R 777 /dev/ttyACM0, i get chmod: cannot access '/dev/ttyACM0': No such file or directory.

Why it said that no such file or directory when it's clearly that i have ttyACM0?

Improve this question
1
  • Given the amount of times it's being logged, perhaps it is hot pluggable and another module is taking it over.
    – Bib
    Nov 15, 2022 at 16:06

0

Reset to default

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.