forked from luck/tmp_suning_uos_patched
8813d1c00c
The MCA bus has a few "integrated" functions, which are effectively virtual slots on the bus. The problem is that these special functions don't have dedicated pos IDs, so we have to manufacture ids for them outside the pos space ... and these ids can't be matched by the standard matching function, so add a special registration that requests a list of pos ids or a particular integrated function. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/* -*- mode: c; c-basic-offset: 8 -*- */
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/*
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* MCA driver support functions for sysfs.
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*
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* (C) 2002 James Bottomley <James.Bottomley@HansenPartnership.com>
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*
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**-----------------------------------------------------------------------------
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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**
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**-----------------------------------------------------------------------------
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*/
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#include <linux/device.h>
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#include <linux/mca.h>
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#include <linux/module.h>
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int mca_register_driver(struct mca_driver *mca_drv)
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{
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int r;
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if (MCA_bus) {
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mca_drv->driver.bus = &mca_bus_type;
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if ((r = driver_register(&mca_drv->driver)) < 0)
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return r;
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mca_drv->integrated_id = 0;
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}
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return 0;
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}
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EXPORT_SYMBOL(mca_register_driver);
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int mca_register_driver_integrated(struct mca_driver *mca_driver,
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int integrated_id)
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{
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int r = mca_register_driver(mca_driver);
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if (!r)
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mca_driver->integrated_id = integrated_id;
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return r;
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}
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EXPORT_SYMBOL(mca_register_driver_integrated);
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void mca_unregister_driver(struct mca_driver *mca_drv)
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{
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if (MCA_bus)
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driver_unregister(&mca_drv->driver);
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}
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EXPORT_SYMBOL(mca_unregister_driver);
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