cregit-Linux how code gets into the kernel

Release 4.7 drivers/media/dvb-frontends/lnbp21.h

/*
 * lnbp21.h - driver for lnb supply and control ic lnbp21
 *
 * Copyright (C) 2006 Oliver Endriss
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
 *
 *
 * the project's page is at https://linuxtv.org
 */

#ifndef _LNBP21_H

#define _LNBP21_H

#include <linux/kconfig.h>

/* system register bits */
/* [RO] 0=OK; 1=over current limit flag */

#define LNBP21_OLF	0x01
/* [RO] 0=OK; 1=over temperature flag (150 C) */

#define LNBP21_OTF	0x02
/* [RW] 0=disable LNB power, enable loopthrough
        1=enable LNB power, disable loopthrough */

#define LNBP21_EN	0x04
/* [RW] 0=low voltage (13/14V, vert pol)
        1=high voltage (18/19V,horiz pol) */

#define LNBP21_VSEL	0x08
/* [RW] increase LNB voltage by 1V:
        0=13/18V; 1=14/19V */

#define LNBP21_LLC	0x10
/* [RW] 0=tone controlled by DSQIN pin
        1=tone enable, disable DSQIN */

#define LNBP21_TEN	0x20
/* [RW] current limit select:
        0:Iout=500-650mA Isc=300mA
        1:Iout=400-550mA Isc=200mA */

#define LNBP21_ISEL	0x40
/* [RW] short-circuit protect:
        0=pulsed (dynamic) curr limiting
        1=static curr limiting */

#define LNBP21_PCL	0x80

#include <linux/dvb/frontend.h>

#if IS_REACHABLE(CONFIG_DVB_LNBP21)
/* override_set and override_clear control which
 system register bits (above) to always set & clear */
extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe,
				struct i2c_adapter *i2c, u8 override_set,
				u8 override_clear);
#else

static inline struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 override_set, u8 override_clear) { printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
andrew de quinceyandrew de quincey3597.22%150.00%
harvey harrisonharvey harrison12.78%150.00%
Total36100.00%2100.00%

#endif #endif

Overall Contributors

PersonTokensPropCommitsCommitProp
oliver endrissoliver endriss5745.24%111.11%
andrew de quinceyandrew de quincey5442.86%333.33%
igor m. liplianinigor m. liplianin97.14%111.11%
mauro carvalho chehabmauro carvalho chehab43.17%222.22%
arnd bergmannarnd bergmann10.79%111.11%
harvey harrisonharvey harrison10.79%111.11%
Total126100.00%9100.00%
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