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From: Dmitry Torokhov <dtor_core@ameritech.net>
To: Vojtech Pavlik <vojtech@suse.cz>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Peter Osterlund <petero2@telia.com>,
	Luca Bigliardi <shammash@artha.org>,
	linux-kernel@vger.kernel.org
Subject: Re: request for opinion on synaptics, adb and powerpc
Date: Sat, 7 Jan 2006 11:04:52 -0500	[thread overview]
Message-ID: <200601071104.53188.dtor_core@ameritech.net> (raw)
In-Reply-To: <20060107082523.GA6276@corona.ucw.cz>

On Saturday 07 January 2006 03:25, Vojtech Pavlik wrote:
> 
> If a relative mode is an absolute must, then a kernel option is IMO
> sufficient (we have psmouse.proto=imps for the classic PS/2 Synaptics
> pads), although a sysfs attribute would likely be better.
> 

Just FYI, writing into /sys/bus/serio/devices/serioX/protcol allows
swicthing ptorocol dynamically (this involves teardown of old input
device and creation of a new one).

> In theory, we could use EV_SYN, SYN_CONFIG for notifying applications
> that the device has changed its capabilities, but a
> disconnect/recreation will work better, since no applications support
> the SYN_CONFIG notification ATM.
> 

I could see SYN_CONFIG being used to signal changes in limits (like min
and max X coordinates) but not to basic device capabilities.

-- 
Dmitry

  reply	other threads:[~2006-01-07 16:04 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20060106231301.GG4732@kamaji.shammash.lan>
2006-01-07  0:25 ` request for opinion on synaptics, adb and powerpc Peter Osterlund
2006-01-07  0:51   ` Benjamin Herrenschmidt
2006-01-07  4:17     ` Dmitry Torokhov
2006-01-07  4:33       ` Benjamin Herrenschmidt
2006-01-07  4:36         ` Dmitry Torokhov
2006-01-07  4:44           ` Benjamin Herrenschmidt
2006-01-07  4:46             ` Dmitry Torokhov
2006-01-07  5:02               ` Dmitry Torokhov
2006-01-07  5:49               ` Benjamin Herrenschmidt
2006-01-07  8:25         ` Vojtech Pavlik
2006-01-07 16:04           ` Dmitry Torokhov [this message]
2006-01-07 18:40             ` Vojtech Pavlik
2006-01-07 22:15               ` Benjamin Herrenschmidt

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