linux-kernel - Re: [LIBERTAS-SDIO] Support for single transfer blocks?

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Message-ID: <4A23A04A.2030004@digi.com>
Date:	Mon, 1 Jun 2009 11:32:58 +0200
From:	Luis Galdos <luis.galdos@...i.com>
To:	Pierre Ossman <pierre@...man.eu>
CC:	Dan Williams <dcbw@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	Pierre Ossman <drzeus@...eus.cx>
Subject: Re: [LIBERTAS-SDIO]  Support for single transfer blocks?

Pierre Ossman wrote:
>>> On Mon, 11 May 2009 16:41:51 +0200 Luis Galdos <luis.galdos@...i.com> wrote:
>>>> * The transfer of Ethernet-frames works only if the "complete" frame is smaller than the 
>>>> block size of the SDIO-host. By larger packages, the SD8686 doesn't generate the expected 
>>>> IRQ (cause it expected a multiple transfer) and the driver detects a timeout.
>>>>
> 
> Unfortunately, the libertas chip cannot support your host as it
> requires everything to be done in a single transaction. So I'm afraid
> you'll have to look at another host controller or another wifi chip.
Thanks a lot for this info, this confirms my expectation. And sorry for the delayed 
feedback (I was on vacations).


> Rgds
Regards,


-- 
Luis Galdos
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