85 i2c_do_stop(int fd)  in i2c_do_stop()  argument
89 	i = ioctl(fd, I2CSTOP);  in i2c_do_stop()
97 i2c_do_start(int fd, struct iiccmd *cmd)  in i2c_do_start()  argument
101 	i = ioctl(fd, I2CSTART, cmd);  in i2c_do_start()
109 i2c_do_repeatstart(int fd, struct iiccmd *cmd)  in i2c_do_repeatstart()  argument
113 	i = ioctl(fd, I2CRPTSTART, cmd);  in i2c_do_repeatstart()
121 i2c_do_write(int fd, struct iiccmd *cmd)  in i2c_do_write()  argument
125 	i = ioctl(fd, I2CWRITE, cmd);  in i2c_do_write()
133 i2c_do_read(int fd, struct iiccmd *cmd)  in i2c_do_read()  argument
137 	i = ioctl(fd, I2CREAD, cmd);  in i2c_do_read()
145 i2c_do_reset(int fd)  in i2c_do_reset()  argument
151 	i = ioctl(fd, I2CRSTCARD, &cmd);  in i2c_do_reset()
208 scan_bus(const char *dev, int fd, const char *skip, int verbose)  in scan_bus()  argument
233 			if (i2c_do_reset(fd))  in scan_bus()
243 				error = ioctl(fd, I2CRDWR, &rdwrdata);  in scan_bus()
245 				error = ioctl(fd, I2CSTART, &cmd);  in scan_bus()
248 				(void)ioctl(fd, I2CSTOP);  in scan_bus()
272 	return (i2c_do_reset(fd));  in scan_bus()
276 reset_bus(const char *dev, int fd, int verbose)  in reset_bus()  argument
281 	return (i2c_do_reset(fd));  in reset_bus()
315 write_offset(int fd, struct options i2c_opt, struct iiccmd *cmd)  in write_offset()  argument
321 		return (i2c_do_write(fd, cmd));  in write_offset()
327 i2c_write(int fd, struct options i2c_opt, uint8_t *i2c_buf)  in i2c_write()  argument
335 	if (i2c_do_start(fd, &cmd))  in i2c_write()
336 		return (i2c_do_stop(fd) | 1);  in i2c_write()
340 		if (write_offset(fd, i2c_opt, &cmd))  in i2c_write()
341 			return (i2c_do_stop(fd) | 1);  in i2c_write()
343 		if (i2c_do_stop(fd))  in i2c_write()
346 		if (i2c_do_start(fd, &cmd))  in i2c_write()
347 			return (i2c_do_stop(fd) | 1);  in i2c_write()
355 		if (i2c_do_write(fd, &cmd))  in i2c_write()
356 			return (i2c_do_stop(fd) | 1);  in i2c_write()
360 		if (write_offset(fd, i2c_opt, &cmd))  in i2c_write()
361 			return (i2c_do_stop(fd) | 1);  in i2c_write()
363 		if (i2c_do_repeatstart(fd, &cmd))  in i2c_write()
364 			return (i2c_do_stop(fd) | 1);  in i2c_write()
372 		if (i2c_do_write(fd, &cmd))  in i2c_write()
373 			return (i2c_do_stop(fd) | 1);  in i2c_write()
386 		if (i2c_do_write(fd, &cmd))  in i2c_write()
387 			return (i2c_do_stop(fd) | 1);  in i2c_write()
391 	return (i2c_do_stop(fd));  in i2c_write()
395 i2c_read(int fd, struct options i2c_opt, uint8_t *i2c_buf)  in i2c_read()  argument
407 		if (i2c_do_start(fd, &cmd))  in i2c_read()
408 			return (i2c_do_stop(fd) | 1);  in i2c_read()
410 		if (write_offset(fd, i2c_opt, &cmd))  in i2c_read()
411 			return (i2c_do_stop(fd) | 1);  in i2c_read()
413 		if (i2c_opt.mode == I2C_MODE_STOP_START && i2c_do_stop(fd))  in i2c_read()
421 		if (i2c_do_start(fd, &cmd))  in i2c_read()
422 			return (i2c_do_stop(fd) | 1);  in i2c_read()
424 		if (i2c_do_repeatstart(fd, &cmd))  in i2c_read()
425 			return (i2c_do_stop(fd) | 1);  in i2c_read()
431 	if (i2c_do_read(fd, &cmd))  in i2c_read()
432 		return (i2c_do_stop(fd) | 1);  in i2c_read()
434 	return (i2c_do_stop(fd));  in i2c_read()
449 i2c_rdwr_transfer(int fd, struct options i2c_opt, uint8_t *i2c_buf)  in i2c_rdwr_transfer()  argument
483 	if (ioctl(fd, I2CRDWR, &xfer) == -1 )  in i2c_rdwr_transfer()
490 access_bus(int fd, struct options i2c_opt)  in access_bus()  argument
508 		error = i2c_rdwr_transfer(fd, i2c_opt, i2c_buf);  in access_bus()
510 		error = i2c_write(fd, i2c_opt, i2c_buf);  in access_bus()
512 		error = i2c_read(fd, i2c_opt, i2c_buf);  in access_bus()
547 	int error, fd;  in command_bus()  local
667 	fd = fd_cache[bus];  in command_bus()
668 	if (fd < 0) {  in command_bus()
670 		fd = open(devbuf, O_RDWR);  in command_bus()
671 		if (fd == -1) {  in command_bus()
676 		fd_cache[bus] = fd;  in command_bus()
679 	error = i2c_rdwr_transfer(fd, i2c_opt, dbuf);  in command_bus()
744 	int fd, error = 0, ch;  in main()  local
884 	fd = open(dev, O_RDWR);  in main()
885 	if (fd == -1) {  in main()
893 		error = access_bus(fd, i2c_opt);  in main()
896 		error = scan_bus(dev, fd, i2c_opt.skip, i2c_opt.verbose);  in main()
899 		error = reset_bus(dev, fd, i2c_opt.verbose);  in main()
905 	ch = close(fd);  in main()