input-evdev patch adding option to override XDevice type Atom, option to force EV_REL events being treated as absolute values.

Daniel Stone daniel at
Tue Mar 11 07:45:53 PDT 2008

On Tue, Mar 11, 2008 at 03:25:26PM +0100, Wolfgang Draxinger wrote:
> Am Dienstag, 11. März 2008 schrieb Nicolas Mailhot:
> > I'd be very careful not to assume what can or can not be done at
> > kernel level, and what should and should not belong in the kernel.
> I think applying the quirks at the kernel level in the [usb]hid driver 
> is probably the way to go, but IMHO having the _table_ mapping the 
> quirks to devices _stored in_ the kernel is a bad idea. That's what 
> we've got SysFS and UDev for. I mean, modules are configured on the 
> user space level as well (/etc/modules.conf, /etc/modprobe.conf), 
> though they live in kernel space.
> Have the table somewhere in the filesystem (possibly in form of UDev 
> rules) and let UDev apply the quirks on individual devices through 
> SysFS.

The point is that you're going against every possible precedent (PS/2
devices, ATAPI, random USB devices, whatever -- all of which allegedly
speak 'standard' protocols, but which need dumb vendor quirks).  Tables
in the kernel are stock standard by now.

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