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From: Dmitry Torokhov <dtor_core@ameritech.net>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Greg KH <greg@kroah.com>, Patrick Mochel <mochel@osdl.org>
Subject: Driver core change request
Date: Wed, 6 Oct 2004 23:54:18 -0500	[thread overview]
Message-ID: <200410062354.18885.dtor_core@ameritech.net> (raw)

Hi,

I am reworking my sysfs serio patches (trying to get dynamic psmouse
protocol switching) and I am wondering if we could export device_attach
function. Serio system allows user to request device rescan - force current
driver to let go off the device and find another suitable driver. Also user
can manually request device to be disconnected/connected to a driver. By
having device_attach exported I could get rid of some duplicated code.

Also serio allows user to request a specific driver to be bound to a device
in case there are several options (psmouse/serio_raw for example). To do
that and not poke in the driver core guts too much I need something like the
following:

int driver_probe_device(struct device_driver *dev, struct device *dev)
{
        int error;
        
	dev->driver = drv;
        if (drv->probe) {
        	if ((error = drv->probe(dev))) {
                	dev->driver = NULL;
                        return error;
                }
	}
        device_bind_driver(dev);
        return 0;
}


static int bus_match(struct device * dev, struct device_driver * drv)
{
        if (dev->bus->match(dev, drv))
		return driver_probe_device(drv, dev);

        return -ENODEV;
}

I.e driver_probe_device is exported. Does it have a chance to be accepted?

Thanks!

-- 
Dmitry

             reply	other threads:[~2004-10-07  4:54 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-07  4:54 Dmitry Torokhov [this message]
2004-10-07 21:40 ` Driver core change request Greg KH
2004-10-08  2:59   ` Dmitry Torokhov
2004-10-08 21:48     ` Greg KH
2004-10-12  6:29       ` Dmitry Torokhov
2004-10-12  6:31         ` [PATCH 1/4] Driver core: export device_attach Dmitry Torokhov
2004-10-12  6:31           ` [PATCH 2/4] Driver core: add driver_probe_device Dmitry Torokhov
2004-10-12  6:32             ` [PATCH 3/4] Driver core: add "driver" default attribute Dmitry Torokhov
2004-10-12  6:33               ` [PATCH 4/4] Driver core: add "bind_mode" " Dmitry Torokhov
2004-10-29 16:37             ` [PATCH 2/4] Driver core: add driver_probe_device Greg KH
2004-10-29 18:24               ` Dmitry Torokhov
2004-10-29 18:32                 ` Greg KH
2004-10-29 16:37           ` [PATCH 1/4] Driver core: export device_attach Greg KH
2004-10-21  7:05         ` Driver core change request Dmitry Torokhov
2004-10-21 14:50           ` Greg KH

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