Changes between Initial Version and Version 1 of USB

Timestamp:

06/01/21 14:05:57 (3 years ago)

Author:

krit

Comment:

--

USB

@@ +1 @@
+= USB =
+
+Fix port usb Digitemp read Temperature, find out where the link find to ttyUSB0 or ttyUSB1
+{{{
+[root@rock rules.d]# ls -l /dev/serial/by-id/
+total 0
+lrwxrwxrwx 1 root root 13 Jun  1 02:53 usb-Prolific_Technology_Inc._USB-Serial_Controller-if00-port0 -> ../../ttyUSB1
+lrwxrwxrwx 1 root root 13 Jun  1 02:53 usb-Silicon_Labs_CP2102N_USB_to_UART_Bridge_Controller_2c67e783c72aea119cabbdfad0cd4f36-if00-port0 -> ../../ttyUSB0
+}}}
+
+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
+READ_TIME 1000
+LOG_TYPE 1
+LOG_FORMAT "%b %d %H:%M:%S Sensor %s C: %.2C F: %.2F"
+CNT_FORMAT "%b %d %H:%M:%S Sensor %s #%n %C"
+HUM_FORMAT "%b %d %H:%M:%S Sensor %s C: %.2C F: %.2F H: %h%%"
+SENSORS 1
+ROM 0 0x28 0xFF 0x64 0x1E 0x39 0xE1 0x30 0x34
+[jpc@rock ~]$
+}}}
+
+We can read Temperatue with
+{{{
+[jpc@rock ~]$ digitemp_DS9097 -a -q -c /etc/digitemp.conf
+Jun 01 21:04:18 Sensor 0 C: 28.00 F: 82.40
+[jpc@rock ~]$
+}}}