linux-kernel - Re: [PATCH 3/3] net: wireless: bcm43xx: big_buffer

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Message-ID: <476326A1.6090404@lwfinger.net>
Date:	Fri, 14 Dec 2007 16:58:09 -0800
From:	Larry Finger <larry.finger@...inger.net>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	Michael Buesch <mb@...sch.de>, Daniel Walker <dwalker@...sta.com>,
	Ray Lee <ray-lk@...rabbit.org>,
	Simon Holm Thøgersen <odie@...aau.dk>,
	matthias.kaehlcke@...il.com, linux-kernel@...r.kernel.org,
	linux@...mer.net, Ingo Molnar <mingo@...e.hu>,
	kjwinchester@...il.com, jonathan@...masters.org,
	akpm@...ux-foundation.org, bcm43xx-dev@...ts.berlios.de
Subject: Re: [PATCH 3/3] net: wireless: bcm43xx: big_buffer_sem semaphore
 to	mutex

Rafael J. Wysocki wrote:
> 
> Actually, can you explain why, from the technical point of view, the version 4
> firware is better than version 3, please?

I will be very interested in Michael's answer to this question; however, my experience is that it 
doesn't make much difference if your device is supported by both V3 and V4 firmware. This impression 
was obtained by comparing BCM4318 and BCM4311/1 devices with b43 and b43legacy.

Note that 802.11b and early BCM4306 devices are not supported by V4 firmware. Similarly, with 
BCM4311/2 and newer devices V3 firmware fails. As Michael said "newer drivers supporting newer 
hardware need newer firmware".

Larry
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