// Get supported event bits
public static int GetBit(int fd, EvdevType ev, int length, IntPtr data)
{
// EVIOCGBIT = _IOC(_IOC_READ, 'E', 0x20 + (ev), len)
uint ioctl = IOCreate(DirectionFlags.Read, (int)ev + 0x20, length);
int retval = Libc.ioctl(fd, ioctl, data);
return(retval);
}
public static int GetName(int fd, out string name)
{
unsafe
{
sbyte *pname = stackalloc sbyte[129];
int ret = Libc.ioctl(fd, EvdevIoctl.Name128, new IntPtr(pname));
name = new string(pname);
return(ret);
}
}
public static int GetId(int fd, out EvdevInputId id)
{
id = default(EvdevInputId);
unsafe
{
fixed(EvdevInputId *pid = &id)
{
return(Libc.ioctl(fd, EvdevIoctl.Id, new IntPtr(pid)));
}
}
}
// Get absolute value / limits
public static int GetAbs(int fd, EvdevAxis axis, out InputAbsInfo info)
{
info = default(InputAbsInfo);
unsafe
{
fixed(InputAbsInfo *pinfo = &info)
{
// EVIOCGABS(abs) = _IOR('E', 0x40 + (abs), struct input_absinfo)
uint ioctl = IOCreate(DirectionFlags.Read, (int)axis + 0x40, BlittableValueType <InputAbsInfo> .Stride);
int retval = Libc.ioctl(fd, ioctl, new IntPtr(pinfo));
return(retval);
}
}
}