Subject: Re: SSFDC/SmartMedia Reader question
To: None <port-i386@NetBSD.ORG>
From: Wolfgang Rupprecht <wolfgang@wsrcc.com>
List: port-i386
Date: 09/15/2000 12:46:58
et1@attglobal.net (Ernst du Toit) writes:
> Are there any supported SmartMedia (aka SSFDC) readers? I'm
> particularly interested in anything USB based, but any device might
> be worth considering.
I have the Newmedia pcmcia reader. This can download my 4 meg cards
in ~3 seconds.
The Newmedia does have a significant bug under netbsd (including
-current) though. It hangs the kernel for ~40 seconds whenever the
reader in first plugged in. It is a bit of a drag to have your
portable freeze up and go into high-battery usage mode for 40 seconds
(especially when away from wall-power). The battery doesn't last that
long as it and having your computer go into a spin-wait warming up the
CPU just adds insult to injury.
The Bug? The kernel does a spin-wait for a status bit in the wdc
controller code that takes 40 seconds to come valid. (Ideally the
kernel would really stop spin-waiting after a few milliseconds.)
-wolfgang
--
Wolfgang Rupprecht <wolfgang+gnus@dailyplanet.wsrcc.com>
http://www.wsrcc.com/wolfgang/
Coming soon: GPS mapping tools for Open Systems. http://www.gnomad-mapping.com/