hsi_start_tx (9)     - Signal the port that the client wants to start a TX
hsi_stop_tx (9)      - Signal the port that the client no longer wants to tra...
SSL_want (3ssl)      - obtain state information TLS/SSL I/O operation
SSL_want_nothing (3ssl) - obtain state information TLS/SSL I/O operation
SSL_want_read (3ssl) - obtain state information TLS/SSL I/O operation
SSL_want_write (3ssl) - obtain state information TLS/SSL I/O operation
SSL_want_x509_lookup (3ssl) - obtain state information TLS/SSL I/O operation
struct_usb_class_driver (9) - identifies a USB driver that wants to use the U...
wait_on_bit_lock (9) - wait for a bit to be cleared, when wanting to set it
wait_on_bit_lock_action (9) - wait for a bit to be cleared, when wanting to s...
wait_on_bit_lock_io (9) - wait for a bit to be cleared, when wanting to set it
Want (3pm)           - A generalisation of "wantarray"