General • Re: Using Raspberry Pi Pico as HID bridge for Pi 5 - Feasibility check

Code:

int send_mouse(int x,int y,char but,int flag)  {  unsigned char buf[5];  int x0,y0;  static int reportindex = -1;  static int lastx = 0;  static int lasty = 0;    if(flag == 0)  // new xy    {    x0 = x;    y0 = y;    lastx = x;    lasty = y;        }  else   // flag=1 button click - use last xy    {    x0 = lastx;    y0 = lasty;    }     if(reportindex < 0)    {  // look up Report 1 index    buf[0] = 0x2A;    buf[1] = 0x4D;    reportindex = find_ctic_index(localnode(),UUID_2,buf);    if(reportindex < 0)      {      printf("Failed to find Report characteristic\n");      return(0);      }    ++reportindex;  // Mouse is Report 2    }        buf[0] = but;  buf[1] = x0 & 0xFF;  buf[2] = (x0 >> 8) & 0xFF;  buf[3] = y0 & 0xFF;  buf[4] = (y0 >> 8) & 0xFF;  // send to Report2  write_ctic(localnode(),reportindex,buf,5);    return(1);  }