@param [in] pDescriptor Descriptor address for the file\r
@param [in] pOffset File offset\r
@param [in] LengthInBytes Number of bytes to read\r
@param [in] pBuffer Address of the buffer to receive the data\r
\r
@return The number of bytes read or -1 if an error occurs.\r
@param [in] pDescriptor Descriptor address for the file\r
@param [in] pOffset File offset\r
@param [in] LengthInBytes Number of bytes to read\r
@param [in] pBuffer Address of the buffer to receive the data\r
\r
@return The number of bytes read or -1 if an error occurs.\r