linux-kernel - Re: [linux-pm] [RFC] PM_QOS api update to use handles 1/5

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Message-ID: <20100106191831.GA3045@elf.ucw.cz>
Date:	Wed, 6 Jan 2010 20:18:31 +0100
From:	Pavel Machek <pavel@....cz>
To:	mark gross <mgross@...ux.intel.com>
Cc:	640E9920 <640e9920@...il.com>, linux-pm@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [linux-pm] [RFC] PM_QOS api update to use handles 1/5

Hi!

> > Umm.. passing binary numbers like that... is not exactly good
> > interface. Think endianness issues  when writing to it from high-level
> > language.
> 
> yeah.  At the moment I can't recall why I went binary for the ABI, 
> we can revisit this, but its been in the wild for a few years now :(
> 
> I guess I can do some tricks to see if its a hex string representation
> of a number and parse that as well as supporting the s32.  i.e. accept
> strings "0x0000000" ... "0xFFFFFFFF" and return -EINVAL for anything
> else.

Maybe you could use length for detection? If they are writing 4 bytes,
it is s32, 10 bytes means ascii?
									Pavel
-- 
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