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author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
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committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /drivers/media/dvb/dvb-usb/dvb-usb-i2c.c | |
parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'drivers/media/dvb/dvb-usb/dvb-usb-i2c.c')
-rw-r--r-- | drivers/media/dvb/dvb-usb/dvb-usb-i2c.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c b/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c new file mode 100644 index 00000000..88e4a62a --- /dev/null +++ b/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c @@ -0,0 +1,43 @@ +/* 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; + } + + strlcpy(d->i2c_adap.name, d->desc->name, sizeof(d->i2c_adap.name)); + 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; +} |