48 lines
902 B
C
48 lines
902 B
C
#include <errno.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <pthread.h>
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#include <linux/dvb/mod.h>
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static int set_property(int fd, uint32_t cmd, uint32_t data)
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{
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struct dtv_property p;
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struct dtv_properties c;
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int ret;
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p.cmd = cmd;
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c.num = 1;
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c.props = &p;
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p.u.data = data;
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ret = ioctl(fd, FE_SET_PROPERTY, &c);
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if (ret < 0) {
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fprintf(stderr, "FE_SET_PROPERTY returned %d\n", errno);
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return -1;
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}
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return 0;
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}
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int main()
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{
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int fd;
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struct dvb_mod_params mp;
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struct dvb_mod_channel_params mc;
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fd = open("/dev/dvb/adapter0/mod0", O_RDONLY);
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set_property(fd, MODULATOR_MODULATION, QAM_256);
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set_property(fd, MODULATOR_SYMBOL_RATE, 6900000);
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set_property(fd, MODULATOR_FREQUENCY, 114000000);
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close(fd);
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}
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