typedef struct {
char far *pqRx; /* pointer to Rx queue */
int cbqRx; /* size of Rx queue in bytes */
char far *pqTx; /* pointer to Tx queue */
int cbqTx; /* size of Tx queue in bytes */
} qdb;
The qdb structure contains information about the location and size of the transmit and receive queues.
pqRx
Points to the receive queue.
cbqRx
Specifies the size (in bytes) of the receive queue.
pqTx
Points to the transmit queue.
cbqTx
Specifies the size (in bytes) of the transmit queue.