---------------------------------
The UNI-T UT-D04 cable with Hoitek HE2325U (or WCH CH9325) chip seems to have
-a very specific problem on Linux. Apparently it requires a to be put into
+a very specific problem on Linux. Apparently it requires to be put into
suspend (and woken up again) before it is usable. This seems to be a
Linux-only issue, Windows is not affected by this since apparently the
Windows kernel does this for every USB device, always.
done
+Enabling multimeter / data logger measurement output
+----------------------------------------------------
+
+Some multimeters or data loggers will not start outputting measurement data
+unless a certain action has been performed by the user beforehand. This is
+usually mentioned in the vendor manual of the respective device, but here's
+a short list for convenience:
+
+ - Digitek DT4000ZC: Briefly press the "RS232" button.
+ - PCE PCE-DM32: Briefly press the "RS232" button.
+ - RadioShack 22-812: Press and hold "SELECT" and "RANGE" together.
+ - TekPower TP4000ZC: Briefly press the "RS232" button.
+ - UNI-T UT61D: Press the "REL/RS232/USB" button for roughly 1 second.
+ - V&A VA18B: Keep the "Hz/DUTY" key pressed while powering on the device.
+ - Victor 70C: Press the "REL/RS232" button for roughly 1 second.
+ - Victor 86C: Press the "REL/RS232" button for roughly 1 second.
+
+
ALSA driver
-----------