linux-kernel - Re: [PATCHv2] mcp23s08: support mcp23s17 variant

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <87bp20qoxo.fsf@macbook.be.48ers.dk>
Date:	Fri, 25 Feb 2011 13:27:47 +0100
From:	Peter Korsgaard <jacmet@...site.dk>
To:	grant.likely@...retlab.ca
Cc:	dbrownell@...rs.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCHv2] mcp23s08: support mcp23s17 variant

>>>>> "Peter" == Peter Korsgaard <jacmet@...site.dk> writes:

 Peter> mpc23s17 is very similar to the mcp23s08, except that registers
 Peter> are 16bit wide, so extend the interface to work with both
 Peter> variants.

 Peter> The s17 variant also has an additional address pin, so adjust
 Peter> platform data structure to support up to 8 devices per SPI
 Peter> chipselect.

 Peter> Signed-off-by: Peter Korsgaard <jacmet@...site.dk>
 Peter> ---
 Peter> Changes since v1:
 Peter> - Add mcp23s08_ops callbacks for 8 and 16 bit instead of handling both
 Peter>   in the same accessor function as requested by Grant.
 Peter> - Don't use a temporary buffer for 8bit version of read_regs -
 Peter>   Stack addresses are not DMA safe.

Ping? Any comments?

-- 
Bye, Peter Korsgaard
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/