From mboxrd@z Thu Jan  1 00:00:00 1970
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Sun, 22 Aug 2010 15:29:55 -0500
Subject: [PATCH 2/2] b43: N-PHY: add sub calls of band width setting
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To: =?ISO-8859-2?Q?G=E1bor_Stefanik?= <netrolller.3d@gmail.com>
Cc: =?ISO-8859-2?Q?Rafa=B3_Mi=B3ecki?= <zajec5@gmail.com>, linux-wireless@vger.kernel.org, b43-dev@lists.infradead.org

On 08/22/2010 03:04 PM, G?bor Stefanik wrote:
> 
> Sorry, I'm on a Windows-only machine right now.
> However, the general rule of translation is:
> mhf(a, b, c, d) -> b43_hf_write(dev, (b43_hf_read(dev) & (~b <<
> (a*16))) | (c << (a*16)))
> (Yes, the last parameter is ignored; it seems to be just Broadcrap -
> crap written by Broadcom.)
> 

IIRC, the d part is a flag used to save the state and avoid writes if the code
is setting a state already available. As these writes are not very expensive,
this part can indeed be called Broadcrap.

Larry