Use dentry_path() to create full path to inode object
[pohmelfs.git] / drivers / media / dvb / dvb-usb / dvb-usb-i2c.c
blob88e4a62abc44db45e72ea93bc46334805e0ef2f7
1 /* dvb-usb-i2c.c is part of the DVB USB library.
3 * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
4 * see dvb-usb-init.c for copyright information.
6 * This file contains functions for (de-)initializing an I2C adapter.
7 */
8 #include "dvb-usb-common.h"
10 int dvb_usb_i2c_init(struct dvb_usb_device *d)
12 int ret = 0;
14 if (!(d->props.caps & DVB_USB_IS_AN_I2C_ADAPTER))
15 return 0;
17 if (d->props.i2c_algo == NULL) {
18 err("no i2c algorithm specified");
19 return -EINVAL;
22 strlcpy(d->i2c_adap.name, d->desc->name, sizeof(d->i2c_adap.name));
23 d->i2c_adap.algo = d->props.i2c_algo;
24 d->i2c_adap.algo_data = NULL;
25 d->i2c_adap.dev.parent = &d->udev->dev;
27 i2c_set_adapdata(&d->i2c_adap, d);
29 if ((ret = i2c_add_adapter(&d->i2c_adap)) < 0)
30 err("could not add i2c adapter");
32 d->state |= DVB_USB_STATE_I2C;
34 return ret;
37 int dvb_usb_i2c_exit(struct dvb_usb_device *d)
39 if (d->state & DVB_USB_STATE_I2C)
40 i2c_del_adapter(&d->i2c_adap);
41 d->state &= ~DVB_USB_STATE_I2C;
42 return 0;