Description: Port State indicates what the port is actually in the process of doing. This value may be one of : INACTIVE - H/TPAD port inactive entered during boot. WTPOLSERVE - TPAD is waiting for response to a poll. WTSELRESP - TPAD is waiting for the response to a select. WTDATARESP - H/TPAD is waiting for data to be acknowledged. DATA - H/TPAD is in the process of sending/receiving data. SEL/POL - TPAD is about to select or poll a controller. This is the most common state for a TPAD. SELECT - TPAD is about to select a device. POLL - TPAD is about to poll a device. WTENQRESP - H/TPAD is waiting for a NAK response to an ENQ sent. IDLE - HPAD is waiting for the host to send commands. This is the most common state of the HPAD. WTEOT - HPAD is waiting for an expected EOT from the host. FLUSHINGDATA - HPAD encountered an error in the message received from the host. As a result, the data is being flushed. WTLCM - HPAD received a read/modify and is waiting for the response from the TPAD.