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linux-next/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c
Hans Verkuil f87086e302 v4l-dvb: remove legacy checks to allow support for kernels < 2.6.10
Also remove some blank lines that were used to split compat code at -devel
tree.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20 07:17:52 -03:00

45 lines
1.0 KiB
C

/* dvb-usb-i2c.c is part of the DVB USB library.
*
* Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
* see dvb-usb-init.c for copyright information.
*
* This file contains functions for (de-)initializing an I2C adapter.
*/
#include "dvb-usb-common.h"
int dvb_usb_i2c_init(struct dvb_usb_device *d)
{
int ret = 0;
if (!(d->props.caps & DVB_USB_IS_AN_I2C_ADAPTER))
return 0;
if (d->props.i2c_algo == NULL) {
err("no i2c algorithm specified");
return -EINVAL;
}
strncpy(d->i2c_adap.name, d->desc->name, sizeof(d->i2c_adap.name));
d->i2c_adap.class = I2C_CLASS_TV_DIGITAL,
d->i2c_adap.algo = d->props.i2c_algo;
d->i2c_adap.algo_data = NULL;
d->i2c_adap.dev.parent = &d->udev->dev;
i2c_set_adapdata(&d->i2c_adap, d);
if ((ret = i2c_add_adapter(&d->i2c_adap)) < 0)
err("could not add i2c adapter");
d->state |= DVB_USB_STATE_I2C;
return ret;
}
int dvb_usb_i2c_exit(struct dvb_usb_device *d)
{
if (d->state & DVB_USB_STATE_I2C)
i2c_del_adapter(&d->i2c_adap);
d->state &= ~DVB_USB_STATE_I2C;
return 0;
}