Experimental Physics and Industrial Control System
Hi Mark,
On 2013-04-18 Mark Rivers wrote:
> I don't have a serious need for this device, but there is an EPICS user at
> NIH, Andrew Gomella who needs to control 18 of the model 3006 devices,
> which he is planning to do from a single Linux box.
>
> Is this possible, even in kernel 3.8?
It should be possible even with your kernel version. The issue that Guy
described is that the driver can only talk to one *type* of device at once; so
as long as all 18 are the same model 3006 with the same product ID he should
be fine.
The other question is whether it provides a serial number attribute that can
be used in a udev configuration file to ensure that the /dev/ttyUSB* nodes
always map to the same physical devices. If there is no such attribute then
unplugging 2 devices and plugging them back in could cause the mapping to
change, which could be disastrous. Of course managing all 18 units and
replacing them with spares still becomes a rather complicated chore.
- Andrew
--
It is difficult to get a man to understand something, when his salary
depends upon his not understanding it. -- Upton Sinclair
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