Re: [Bugme-new] [Bug 8310] New: USB device names are not sanitized for UTF-8

On Sat, 7 Apr 2007 03:12:49 -0700 [email protected] wrote:

> http://bugzilla.kernel.org/show_bug.cgi?id=8310
> 
>            Summary: USB device names are not sanitized for UTF-8
>     Kernel Version: 2.6.21-rc5
>             Status: NEW
>           Severity: normal
>              Owner: [email protected]
>          Submitter: [email protected]
> 
> 
> The USB layer will output text device names "as is", sometimes not in 7bit ASCII
> or UTF-8 but ISO-8859-1
> 
> These names are reused by the xorg evdev driver to identify devices:
> 
> Section "InputDevice"
>     Identifier "track-expl"
>     Driver     "evdev"
>     Option     "Protocol" "evdev"
>     Option     "Name" "Microsoft Microsoft Trackball Explorer_"
>     Option     "ZAxisMapping" "4 5"
>     Option     "Buttons" "7"
> EndSection
> 
> evdev matching requires the "Name" string match byte-to-byte to the string
> exposed by the kernel
> 
> That means finding a way to create a ISO-8859-1 conf file on a UTF-8 distro (not
> easy nowadays)
> 
> Also all the Xorg.conf tools will rewrite the file in UTF-8 at the slightest
> opportunity, breaking the matching and killing X startup. Some of the commonly
> installed tools rewrite the file at each boot, and you get to fix X setup
> manually every time
> 
> Can't the USB layer filter byte strings that are incompatible with today's main
> Linux encoding ?

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