linux-kernel - Re: Purpose of parameter in sysfs binary read

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Message-ID: <fc5d35d666d96f146ac06cd775368580.squirrel@intranet.cs.nmsu.edu>
Date:	Tue, 18 Aug 2009 09:43:14 -0600
From:	"Rick L. Vinyard, Jr." <rvinyard@...nmsu.edu>
To:	"Alan Stern" <stern@...land.harvard.edu>
Cc:	"Linux USB" <linux-usb@...r.kernel.org>,
	"LKML" <linux-kernel@...r.kernel.org>
Subject: Re: Purpose of parameter in sysfs binary read

Alan Stern wrote:
> On Tue, 18 Aug 2009, Rick L. Vinyard, Jr. wrote:
>
> Neither one.  If the kernel wanted to add an offset to buf, it would
> have done so before calling the function.  The code should be more like
> this:
>
> 	memcpy(buf, bindata + offset, min(size, bsize - offset));
>

Ahhh, offset into the binary data.

Thanks.

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