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Date: Tue, 20 Mar 2007 12:56:02 +0100 (MET) From: Mikael Pettersson <mikpe@...uu.se> To: ak@...e.de, mikpe@...uu.se Cc: akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk, bzolnier@...il.com, jesper.juhl@...il.com, linux-kernel@...r.kernel.org, trent.waddington@...il.com Subject: Re: [PATCH][5/5][resend] floppy.c: Fix device_create_file() warning On Tue, 20 Mar 2007 12:29:49 +0100 (CET), Andreas Kleen <ak@...e.de> wrote: > > The floppy driver's sysfs file just provides some auxiliary > > information to user-space, none of which matters for most of > > its users. It is IMO totally inappropriate to fail floppy > > driver init in this case. > > I thought it was for udev to create the device nodes? But > I might be wrong on that. It's a file called "cmos" containing the ASCII representation of UDP->cmos, which appears to be some kind of "type" indicator. See floppy_cmos_show(). The file is only readable, not even root can write to it. On one of my machines it contains the value "4", but the device nodes udev created are still just /dev/fd0 and /dev/floppy -> /dev/fd0, so I don't think it affects udev. The "cmos" file seems to be a relatively new addition, as another machine here running an RHEL4 2.6.9 kernel doesn't have it. Unless someone can prove that it's useful I think it should be removed. /Mikael - 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/
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