hid_libusb.hh

#ifndef HID_MACOS_HH
#define HID_MACOS_HH
 
#include <QObject>
#include <libusb.h>
#include "errorstack.hh"
#include "radiointerface.hh"
 
class HIDevice: public QObject
{
    Q_OBJECT
 
public:
  class Descriptor: public USBDeviceDescriptor
  {
  public:
    Descriptor(const USBDeviceInfo &info, uint8_t bus, uint8_t device);
  };
 
 
public:
  HIDevice(const USBDeviceDescriptor &descr, const ErrorStack &err=ErrorStack(), QObject *parent=nullptr);
    virtual ~HIDevice();
 
    bool isOpen() const;
  bool hid_send_recv(const unsigned char *data, unsigned nbytes,
                     unsigned char *rdata, unsigned rlength, const ErrorStack &err=ErrorStack());
 
    void close();
 
public:
  static QList<USBDeviceDescriptor> detect(uint16_t vid, uint16_t pid);
 
protected:
  int write_read(const unsigned char *data, unsigned length,
                 unsigned char *reply, unsigned rlength, const ErrorStack &err=ErrorStack());
  static void read_callback(struct libusb_transfer *t);
 
protected:
  libusb_context *_ctx;
  libusb_device_handle *_dev;
    struct libusb_transfer *_transfer;
    unsigned char _receive_buf[42];
    volatile int _nbytes_received;
  ErrorStack _cbError;
};
 
#endif // HID_MACOS_HH