Date: Wed, 13 Oct 2004 16:42:06 +0200
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Gerd Knorr <kraxel@bytesex.org>, Andrew Morton <akpm@osdl.org>,
       linux-kernel@vger.kernel.org
Subject: Re: video_usercopy() enforces change of VideoText IOCTLs since 2.6.8
Message-ID: <20041013144206.GA4133@t-online.de>
References: <20041007165410.GA2306@t-online.de> <20041008105219.GA24842@bytesex> <20041008140056.72b177d9.akpm@osdl.org> <20041009092801.GC3482@bytesex> <20041009112839.GA2908@t-online.de> <20041009121845.GE3482@bytesex> <20041010085541.GA1642@t-online.de> <20041011151455.GC23632@bytesex> <20041011162153.GA9101@t-online.de> <1097665248.4421.9.camel@localhost.localdomain>
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From: linux@MichaelGeng.de (Michael Geng)
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On Wed, Oct 13, 2004 at 12:00:48PM +0100, Alan Cox wrote:
> On Llu, 2004-10-11 at 17:21, Michael Geng wrote:
> > Thank you! Andrew, could you please forward the patch? 
> > Suggestion for a comment line:
> > Videotext: IOCTLs changed to match _IO macros in linux/ioctl.h
> 
> But have any of them changed ioctl number in the process and broken
> compatibility ?

No compatibility is broken, because old IOCTLs are remapped to new 
ones in the driver. The driver properly handles both old and new
IOCTLs after applying the patch. No user space programs have to be 
changed or recompiled. 

Michael
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