[Linux-gpib-general] Re: HELP! - HP82341D, linux-gpib 3.1.3, kernel 2.4.5

[frank m. h. <fm...@st...>]

On Fri, 24 May 2002, Ed Sternin wrote:

> Unfortunately, the GPIB card(s) in our lab are the HP82341D, which are the
> i/o mapped, PnP ISA cards from HP (Agilent).  They use the 9914 chipset, and
> work under Win95.
>
> I had tried to connect to them under "Ziatech" driver under kernel 2.0.16 earlier,
> (using linux-gpib-2.04) but failed.  I was hoping the new release would include
> a driver for this card, but I see you re-configured the driver scheme completely.
> In fact, I cannot see which driver in 3.1.3 uses tms9914 at all!?

The only driver that uses the tms9914 module is the tnt4882-tms driver.  I
only made that to test tms9914 support (since the NI chips can be
configured to operate in tms9914 compatibility mode).  I intended to get
the tms9914 boards running, but lost interest due to the chip being
quite old and noone had made any requests for it (until now).

> Could you help?  We are willing to do some coding, but we are not terribly clever
> with kernel-level stuff.  Perhaps you could give us some pointers?  Actually, if you could
> add to the driver tree an hp8234x subdirectory, and put a skeleton driver in, and add it
> to the list of valid drivers, somewhere in the code, we could then try to figure out
> what to do within the driver (hopefully, very little compared to any other ISA/9914-type
> driver).  I looked at the code structure, and although it is a
> major improvement from old versions, I am still quite confused by the relationships
> of various pieces, and that's where your help would be most welcome.
>

I'll try and get a skeleton driver into cvs this weekend.  It shouldn't be
too bad, as I remember I was able to get basic read/writes working on the
NI board using the tms9914 support that is already present.

Frank