Difference between revisions of "Udev"
(Created page with "== Giving a static device name == * Get the automatically assigned device name sudo dmesg | grep tty [21151.646593] cdc_acm 1-2:1.2: ttyACM0: USB ACM device * Get vendor and p...") |
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== Giving a static device name == | == Giving a static device name == | ||
* Get the automatically assigned device name | * Get the automatically assigned device name | ||
| − | sudo dmesg | grep tty | + | sudo dmesg | grep tty |
| − | [21151.646593] cdc_acm 1-2:1.2: ttyACM0: USB ACM device | + | [21151.646593] cdc_acm 1-2:1.2: ttyACM0: USB ACM device |
* Get vendor and product id | * Get vendor and product id | ||
udevadm info --name=/dev/ttyACM0 --attribute-walk | grep idProduct | udevadm info --name=/dev/ttyACM0 --attribute-walk | grep idProduct | ||
| Line 10: | Line 10: | ||
ATTRS{idVendor}=="0483" | ATTRS{idVendor}=="0483" | ||
ATTRS{idVendor}=="1d6b" | ATTRS{idVendor}=="1d6b" | ||
| + | * Create a new rule | ||
| + | sudo nano /etc/udev/rules.d/50-usb-serial.rules | ||
| + | * Insert | ||
| + | SUBSYSTEM=="tty", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="374b", SYMLINK+="specificName" | ||
| + | * Activate the rule | ||
| + | sudo udevadm trigger | ||
| + | * Now the device should be available with the new name | ||
| + | ls -l /dev/specificName | ||
| + | lrwxrwxrwx 1 root root 7 Apr 26 07:33 /dev/specificName -> ttyACM0 | ||
Latest revision as of 07:37, 26 April 2023
Giving a static device name[edit]
- Get the automatically assigned device name
sudo dmesg | grep tty [21151.646593] cdc_acm 1-2:1.2: ttyACM0: USB ACM device
- Get vendor and product id
udevadm info --name=/dev/ttyACM0 --attribute-walk | grep idProduct
ATTRS{idProduct}=="374b"
ATTRS{idProduct}=="0002"
udevadm info --name=/dev/ttyACM0 --attribute-walk | grep idVendor
ATTRS{idVendor}=="0483"
ATTRS{idVendor}=="1d6b"
- Create a new rule
sudo nano /etc/udev/rules.d/50-usb-serial.rules
- Insert
SUBSYSTEM=="tty", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="374b", SYMLINK+="specificName"
- Activate the rule
sudo udevadm trigger
- Now the device should be available with the new name
ls -l /dev/specificName lrwxrwxrwx 1 root root 7 Apr 26 07:33 /dev/specificName -> ttyACM0
