navio_sysfs.h

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#pragma once

#include "common.h"

namespace linux_pwm_out
{

/**
 ** class NavioSysfsPWMOut
 * PWM output class for Navio Sysfs
 */
class NavioSysfsPWMOut : public PWMOutBase
{
public:
    NavioSysfsPWMOut(const char *device, int max_num_outputs);
    virtual ~NavioSysfsPWMOut();

    int init() override;

    int send_output_pwm(const uint16_t *pwm, int num_outputs) override;

private:
    int pwm_write_sysfs(char *path, int value);

    static const int MAX_NUM_PWM = 14;
    static const int FREQUENCY_PWM = 400;

    int _pwm_fd[MAX_NUM_PWM];
    int _pwm_num;

    const char *_device;
};

}