From: David Hinds <dhinds@sonic.net>
To: somshekar.c.kadam@in.abb.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: Sandisk Compact Flash
Date: Wed, 20 Jul 2005 09:26:20 -0700 [thread overview]
Message-ID: <20050720162620.GA4555@sonic.net> (raw)
In-Reply-To: <OF56551899.13BEFC21-ON65257044.00280854-65257044.00282876@abbasiapacific.com.sg>
On Wed, Jul 20, 2005 at 12:49:00PM +0530, somshekar.c.kadam@in.abb.com wrote:
>
> Hi David ,
>
> On my controller CF INPACK pin is connected to 3.3v. so Comapct
> flash with DMA capabilty will not be supported , i understood this .
> but i did not undesrtand why only PIO mode 1 is supported is it ,
> why not PIO mode 4 , is it a limitation of pcmcia driver , correct
> me if i am wrong
The 16-bit PCMCIA bus is maxed out at about 1 MB/sec; that's all the
bandwidth there is. What your card supports is irrelevant.
I'm not sure whether the PCMCIA mode actually corresponds to any of
the official PIO modes 0, 1, etc. It is just "slow".
-- Dave
next parent reply other threads:[~2005-07-20 16:26 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <OF56551899.13BEFC21-ON65257044.00280854-65257044.00282876@abbasiapacific.com.sg>
2005-07-20 16:26 ` David Hinds [this message]
2005-08-03 5:37 Sandisk Compact Flash somshekar.c.kadam
-- strict thread matches above, loose matches on Subject: below --
2005-07-20 7:18 somshekar.c.kadam
[not found] <OFF2465F02.D3F1F2D8-ON6525703D.0049BB41-6525703D.004A8B94@in.abb.com>
2005-07-15 5:21 ` David Hinds
2005-07-16 7:04 ` Michael Krufky
2005-07-16 18:31 ` David Hinds
2005-07-16 22:03 ` Norbert van Nobelen
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