tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef SI21XX_H
2#define SI21XX_H
3
4#include <linux/dvb/frontend.h>
5#include "dvb_frontend.h"
6
7struct si21xx_config {
8 /* the demodulator's i2c address */
9 u8 demod_address;
10
11 /* minimum delay before retuning */
12 int min_delay_ms;
13};
14
15#if IS_REACHABLE(CONFIG_DVB_SI21XX)
16extern struct dvb_frontend *si21xx_attach(const struct si21xx_config *config,
17 struct i2c_adapter *i2c);
18#else
19static inline struct dvb_frontend *si21xx_attach(
20 const struct si21xx_config *config, struct i2c_adapter *i2c)
21{
22 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
23 return NULL;
24}
25#endif
26
27static inline int si21xx_writeregister(struct dvb_frontend *fe, u8 reg, u8 val)
28{
29 int r = 0;
30 u8 buf[] = {reg, val};
31 if (fe->ops.write)
32 r = fe->ops.write(fe, buf, 2);
33 return r;
34}
35
36#endif