[ntp:questions] Re: Symmetricon bc635PCI-U

Greg Dowd GDowd at symmetricom.com
Thu May 18 00:18:32 UTC 2006

The best starting point would probably be dev 16 from the Bancomm
bc635VME.  However, I don't have a VME box with Solaris to make sure I
don't break anything.  If someone else does, I can probably scare up a
VME card.  Generically, we need to open a device driver, make an ioctl
call and convert the data.  I'm not current on the linux driver for the
card but I can find out. The alternative would be the shared mem but
that uses a different model which I don't currently know how to extend.

Message: 9
Date: Wed, 17 May 2006 20:03:02 +0000
From: Harlan Stenn <stenn at ntp.isc.org>
Subject: [ntp:questions] Re: Symmetricon bc635PCI-U
To: questions at lists.ntp.isc.org
Message-ID: <ywn9psica07d.fsf at ntp1.isc.org>
Content-Type: text/plain; charset=US-ASCII


Is there an existing driver that could handle these cards as well?

>>> In article
<4B73D9EBE2327E40B4D69822D7C45802033924DA at sjmail1.symmetricom.com>,
GDowd at symmetricom.com (Greg Dowd) writes:

Greg> There have been a few implementations of a refclock driver for the
Greg> bc635/637PCI cards. (-U indicates universal signaling for pci, 635
Greg> the base model type and 637 indicates gps version).  There has
Greg> been a strong pushback for years now against allowing a new driver
Greg> into the distribution.  To be honest, I'm not sure what's out
Greg> now but I don't see one in the list.  Having said that, if you
Greg> hear otherwise, I'll make you one but I don't know if it will be
Greg> maintained in the ntp distro.


Greg Dowd
gdowd at symmetricom dot com (antispam format)
Technologist, TT&M Div.
Symmetricom, Inc. 
"The current implementation is non-obvious and may need to be improved."

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