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From: dmitry pervushin <dpervushin@gmail.com>
To: Vitaly Wool <vwool@ru.mvista.com>
Cc: Greg KH <greg@kroah.com>, David Brownell <david-b@pacbell.net>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	akpm@osdl.org, basicmark@yahoo.com, komal_shah802003@yahoo.com,
	stephen@streetfiresound.com,
	spi-devel-general@lists.sourceforge.net, Joachim_Jaeger@digi.com
Subject: Re: [spi-devel-general] Re: [PATCH/RFC] SPI: add DMAUNSAFE analog to David Brownell's core
Date: Thu, 15 Dec 2005 13:00:17 +0300	[thread overview]
Message-ID: <1134640817.5596.4.camel@fj-laptop> (raw)
In-Reply-To: <43A05C32.3070501@ru.mvista.com>

On Wed, 2005-12-14 at 20:53 +0300, Vitaly Wool wrote:
> Greg KH wrote:
> 
> >What is the speed of your SPI bus?
> >
> >And what are your preformance requirements?
> >  
> >
> The maximum frequency for the SPI bus is 26 MHz, WLAN driver is to work 
> at true 10 Mbit/sec.
My two cents: the faster is better; SPI bus itself can work on 52MHz,
and AFAIK WLAN developers limit the speed due to their firmware
reqiorements.  
> 
> Vitaly
> 
> P. S. I'm speaking not about this particular case during most part of 
> this conversation. Sound cards behind the SPI bus will suffer a lot more 
> since it's their path to use wXrY functions (lotsa small transfers) 
> rather than WLAN's.
> 
> 
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> 


  parent reply	other threads:[~2005-12-15 10:09 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-12 15:20 [PATCH 2.6-git 0/4] SPI core refresh Vitaly Wool
2005-12-12 15:22 ` [PATCH 2.6-git 1/4] SPI core refresh: SPI core patch Vitaly Wool
2005-12-12 15:49   ` Russell King
2005-12-12 15:24 ` [PATCH 2.6-git 2/4] SPI core refresh: MTD dataflash driver Vitaly Wool
2005-12-12 15:26 ` [PATCH 2.6-git 3/4] SPI core refresh: SPI/PNX controller Vitaly Wool
2005-12-12 15:27 ` [PATCH 2.6-git 4/4] SPI core refresh: dumb EEPROM driver Vitaly Wool
2005-12-12 18:01 ` [PATCH 2.6-git 0/4] SPI core refresh Rui Sousa
2005-12-13 12:09   ` [spi-devel-general] " dmitry pervushin
2005-12-13 15:11     ` Rui Sousa
2005-12-13 17:06       ` dmitry pervushin
2005-12-14  6:57       ` Vitaly Wool
2005-12-14 14:28         ` Rui Sousa
2005-12-13 16:35     ` David Brownell
2005-12-13 18:02       ` Rui Sousa
2005-12-13 14:06 ` [PATCH/RFC] SPI: add async message handing library to David Brownell's core Vitaly Wool
2005-12-13 16:53   ` [PATCH/RFC] SPI: add DMAUNSAFE analog " Vitaly Wool
2005-12-13 19:01     ` David Brownell
2005-12-13 19:15       ` Greg KH
2005-12-14 13:50         ` Vitaly Wool
2005-12-14 17:18           ` Greg KH
2005-12-14 17:53             ` Vitaly Wool
2005-12-14 18:50               ` [PATCH/RFC] SPI: add DMAUNSAFE analog David Brownell
2005-12-14 19:29                 ` Vitaly Wool
2005-12-14 19:02               ` [PATCH/RFC] SPI: add DMAUNSAFE analog to David Brownell's core David Brownell
2005-12-14 19:19                 ` Vitaly Wool
2005-12-14 19:33                   ` [spi-devel-general] Re: [PATCH/RFC] SPI: add DMAUNSAFE analog David Brownell
2005-12-14 19:34                 ` [PATCH/RFC] SPI: add DMAUNSAFE analog to David Brownell's core Vitaly Wool
2005-12-15  6:47                 ` Vitaly Wool
2005-12-15 16:44                   ` Greg KH
2005-12-15 22:23                     ` Vitaly Wool
2005-12-15 23:02                       ` Greg KH
2005-12-16  8:37                         ` Vitaly Wool
2005-12-16 17:34                           ` Greg KH
2005-12-16 18:32                             ` [spi-devel-general] Re: [PATCH/RFC] SPI: add DMAUNSAFE analog David Brownell
2005-12-15 20:06                   ` David Brownell
2005-12-15 22:17                     ` Vitaly Wool
2005-12-15 22:33                       ` Greg KH
2005-12-16  3:34                         ` Andy Isaacson
2005-12-16  5:17                           ` Greg KH
2005-12-14 19:16               ` [PATCH/RFC] SPI: add DMAUNSAFE analog to David Brownell's core Greg KH
2005-12-14 19:30                 ` Vitaly Wool
2005-12-15 10:00               ` dmitry pervushin [this message]
2005-12-14 17:22           ` David Brownell
2005-12-14 17:50             ` Vitaly Wool
2005-12-14 19:17               ` [PATCH/RFC] SPI: add DMAUNSAFE analog David Brownell
2005-12-14 20:11                 ` Vitaly Wool
2005-12-13 21:47       ` [PATCH/RFC] SPI: add DMAUNSAFE analog to David Brownell's core Vitaly Wool
2005-12-13 22:15       ` Vitaly Wool
2005-12-14 16:55         ` David Brownell
2005-12-14 17:23           ` Vitaly Wool
2005-12-14 18:48   ` [PATCH/RFC] SPI: add async message handing library " Stephen Street
2005-12-14 19:41     ` Vitaly Wool
2005-12-14 21:19       ` Stephen Street
2005-12-14 19:31   ` [PATCH/RFC] SPI: add async message handing library David Brownell
2005-12-15 12:19   ` [PATCH/RFC] SPI: async message handing library update Vitaly Wool
2005-12-18 18:59     ` David Brownell
2005-12-19 15:40       ` [spi-devel-general] " dmitry pervushin
2005-12-20  7:23         ` David Brownell
2005-12-20 18:02       ` Vitaly Wool
2005-12-22 17:28         ` David Brownell
2005-12-22 22:10           ` Vitaly Wool
2005-12-22 23:55             ` David Brownell
2005-12-21 13:17       ` Vitaly Wool

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