Re: [Linux-gpib-general] Fwd: Fwd: Agilent 82350b can't recover from read timeout?

[Frank M. H. <fm...@gm...>]

On Wed, Jul 31, 2019 at 8:08 PM Dirk Niggemann <dir...@gm...> wrote:
> I thought the issue was directly related to the particular device because i originally triggered the issue by sending an invalid command to the board.
> You don't actually need to send anything- just reading from the device without sending anything is sufficient,
>

Yeah, attempting a read that fails will leave the board out of the
ANRS state, causing tcs to fail.  Try modifying tms9914_aux.c by
changing tms9914_take_control so that it immediately returns
-ETIMEDOUT if "synchronous" is true.   So basically, you want to make
sure it never writes AUX_TCS to the  AUXCR register.