public unsafe int read(DeviceHandle handle, DataBuffer data, int bytesToRead)
{
int num4;
byte* numPtr = stackalloc byte[0x100];
uint regData = 0;
int num3 = -1;
if (handle.isInvalid())
{
GlobalServices.ErrMsg("DDI_EZLinkDongle.read()", "called with INVALID handle");
return -1;
}
switch (data.ddi_getProtocol())
{
case Protocol.ReadRegister:
uint num;
data.ddi_getCommand_ReadRegister(out num);
data.ddi_setReply_ReadRegister(num, regData);
return num3;
case Protocol.ReadStatus:
data.NumItems = 14;
num4 = 0;
while (num4 < data.NumItems)
{
data.Buf[num4] = numPtr[num4];
num4++;
}
return num3;
case Protocol.Read:
if (num3 == 0)
{
data.NumItems = numPtr[4];
for (num4 = 0; num4 < data.NumItems; num4++)
{
data.Buf[num4] = numPtr[num4 + 5];
}
}
return num3;
}
GlobalServices.ErrMsg("DDI_EZLinkDongle.read()", "Unexpected protocol received");
return num3;
}