Proper socat and DigiTemp usage

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Oct 3, 2017, 3:20:11 PM10/3/17

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I've tested multiple command combinations in Debian 8 and 9 using various versions of socat and DigiTemp, but I'm stumped.

I use the following command to create a virtual COM port with a Digi PortServer TS MEI connected to a DS9097U.

# socat -d pty,link=/dev/virtualcom0,raw tcp:172.16.16.10:2102&

# ls -l /dev/ | grep virt

lrwxrwxrwx 1 root root 10 Oct 3 17:45 virtualcom0 -> /dev/pts/2

Executing DigiTemp works great for one run:

# digitemp_DS9097U -qa -c /etc/digitemp.conf

Oct 03 17:55:59 Sensor 0 C: 20.19 F: 68.34

Oct 03 17:56:00 Sensor 1 C: 26.75 F: 80.15

Oct 03 17:56:01 Sensor 2 C: 20.12 F: 68.22

But the second run fails:

# digitemp_DS9097U -qa -c /etc/digitemp.conf

Error 5: DS2480B Adapter Not Detected

Error 7: DS2480B: Bad Response

Socat remains running in the background and DigiTemp doesn't work again until I kill socat and re-execute.

Any ideas?

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Oct 3, 2017, 5:32:14 PM10/3/17

to DigiTemp

According to this post, I need to enable buffering....which apparently the PortServer TS 8/16 MEI Family of products cannot do :-(

The only way I see this succeeding with this PortServer model is crafting a script to launch socat, run DigiTemp once, then kill socat.

I'm sure there's a way to put it all into one string, but I haven't figured it out.

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