Changes between Version 2 and Version 3 of USB

Timestamp:

07/03/21 00:36:01 (3 years ago)

Author:

krit

Comment:

--

USB

@@ -9 +9 @@
 }}}
 
+If we use path to find out which USB belong to Digitemp in this case was platform-xhci-hcd.0.auto-usb-0:1.1:1.0-port0   ../../ttyUSB2
+{{{
+[jpc@rock ~]$ ls /dev/serial/by-path/ -l
+total 0
+lrwxrwxrwx 1 root root 13 Jul  3 02:53 platform-xhci-hcd.0.auto-usb-0:1.1:1.0-port0 -> ../../ttyUSB2
+lrwxrwxrwx 1 root root 13 Jul  3 02:53 platform-xhci-hcd.0.auto-usb-0:1.4:1.0-port0 -> ../../ttyUSB1
+lrwxrwxrwx 1 root root 13 Jul  3 02:53 platform-xhci-hcd.1.auto-usb-0:1:1.0-port0 -> ../../ttyUSB0
+[jpc@rock ~]$ 
+}}}
+
 Then, we config /etc/digitemp.conf to point to softlink file ttyUSB1. In this case, point to usb-Prolific_Technology_Inc.
 {{{
 [jpc@rock ~]$ cat /etc/digitemp.conf
 #TTY /dev/ttyUSB1
-TTY /dev/serial/by-id/usb-Prolific_Technology_Inc._USB-Serial_Controller-if00-port0
+#TTY /dev/serial/by-id/usb-Prolific_Technology_Inc._USB-Serial_Controller-if00-port0
+TTY /dev/serial/by-path/platform-xhci-hcd.0.auto-usb-0:1.1:1.0-port0
+
 READ_TIME 1000
 LOG_TYPE 1