Difference between revisions of "Creation of special Kernel event handling (USB auto connection for serial communication)"
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This will enable a user to connect a USB to serial device to their computer and auto | This will enable a user to connect a USB to serial device to their computer and auto | ||
| − | generate the serial connection. | + | generate the serial connection. Must be performed on the users computer as well as the |
| + | serial device if the device is a micro controller or similar device. | ||
| − | ~$sudo adduser [USERNAME] dialout | + | ~$sudo adduser [USERNAME] dialout |
| − | ~$sudo touch /etc/udev/rules.d/95-serialdaemon.rules | + | ~$sudo touch /etc/udev/rules.d/95-serialdaemon.rules |
| − | ~$sudo chmod +x /etc/udev/rules.d/95-serialdaemon.rules | + | ~$sudo chmod +x /etc/udev/rules.d/95-serialdaemon.rules |
| − | ~$sudo gedit /etc/udev/rules.d/95-serialdaemon.rules | + | ~$sudo gedit /etc/udev/rules.d/95-serialdaemon.rules |
Insert: | Insert: | ||
| − | KERNEL=="ttyUSB0", ENV{SYSTEMD_WANTS}="serialdaemon.service" | + | KERNEL=="ttyUSB0", ENV{SYSTEMD_WANTS}="serialdaemon.service" |
Save and close file | Save and close file | ||
| − | ~$sudo touch /lib/systemd/system/serialdaemon.service | + | ~$sudo touch /lib/systemd/system/serialdaemon.service |
| − | ~$sudo chmod +x /lib/systemd/system/serialdaemon.service | + | ~$sudo chmod +x /lib/systemd/system/serialdaemon.service |
| − | ~$sudo gedit /lib/systemd/system/serialdaemon.service | + | ~$sudo gedit /lib/systemd/system/serialdaemon.service |
Insert: | Insert: | ||
| − | [Unit] | + | [Unit] |
| − | Description=USB serial to socket bridge | + | Description=USB serial to socket bridge |
| − | After=remote-fs.target | + | After=remote-fs.target |
| − | After=syslog.target | + | After=syslog.target |
| − | [Service] | + | [Service] |
| − | ExecStart=/mnt/serialdaemon.sh | + | ExecStart=/mnt/serialdaemon.sh |
Save and close file | Save and close file | ||
| − | ~$sudo touch /mnt/serialdaemon.sh | + | ~$sudo touch /mnt/serialdaemon.sh |
| − | ~$sudo chmod +x /mnt/serialdaemon.sh | + | ~$sudo chmod +x /mnt/serialdaemon.sh |
| − | ~$sudo gedit /mnt/serialdaemon.sh | + | ~$sudo gedit /mnt/serialdaemon.sh |
Insert: | Insert: | ||
| − | #!/bin/sh | + | #!/bin/sh |
| − | date +%F-%T >> /var/log/serialdaemon.log | + | date +%F-%T >> /var/log/serialdaemon.log |
| − | /usr/local/serialdaemon/serialdaemon -serial /dev/ttyUSB0 -port 15789 -baud 9600 >> /var/log/serialdaemon.log 2>&1 | + | /usr/local/serialdaemon/serialdaemon -serial /dev/ttyUSB0 -port 15789 -baud 9600 >> /var/log/serialdaemon.log 2>&1 |
| − | date +%F-%T >> /var/log/serialdaemon.log | + | date +%F-%T >> /var/log/serialdaemon.log |
Save and close file | Save and close file | ||
| − | Restart Computer | + | Restart Computer, upon restart plug in serial device and verify |
| − | + | ~$stty < /dev/ttyUSB0 | |
| − | ~$stty < /dev/ttyUSB0 | + | |
Latest revision as of 00:27, 23 April 2015
This will enable a user to connect a USB to serial device to their computer and auto generate the serial connection. Must be performed on the users computer as well as the serial device if the device is a micro controller or similar device.
~$sudo adduser [USERNAME] dialout ~$sudo touch /etc/udev/rules.d/95-serialdaemon.rules ~$sudo chmod +x /etc/udev/rules.d/95-serialdaemon.rules ~$sudo gedit /etc/udev/rules.d/95-serialdaemon.rules
Insert:
KERNEL=="ttyUSB0", ENV{SYSTEMD_WANTS}="serialdaemon.service"
Save and close file
~$sudo touch /lib/systemd/system/serialdaemon.service ~$sudo chmod +x /lib/systemd/system/serialdaemon.service ~$sudo gedit /lib/systemd/system/serialdaemon.service
Insert:
[Unit] Description=USB serial to socket bridge After=remote-fs.target After=syslog.target [Service] ExecStart=/mnt/serialdaemon.sh
Save and close file
~$sudo touch /mnt/serialdaemon.sh ~$sudo chmod +x /mnt/serialdaemon.sh ~$sudo gedit /mnt/serialdaemon.sh
Insert:
#!/bin/sh date +%F-%T >> /var/log/serialdaemon.log /usr/local/serialdaemon/serialdaemon -serial /dev/ttyUSB0 -port 15789 -baud 9600 >> /var/log/serialdaemon.log 2>&1 date +%F-%T >> /var/log/serialdaemon.log
Save and close file
Restart Computer, upon restart plug in serial device and verify
~$stty < /dev/ttyUSB0
