Man page - ieee1284_ecp_rev_to_fwd(3)
Packages contas this manual
- ieee1284_ecp_write_data(3)
- ieee1284_ref(3)
- ieee1284_ecp_read_addr(3)
- ieee1284_do_nack_handshake(3)
- ieee1284_negotiate(3)
- ieee1284_find_ports(3)
- ieee1284_nibble_read(3)
- ieee1284_write_data(3)
- ieee1284_byte_read(3)
- libieee1284(3)
- ieee1284_ecp_write_addr(3)
- ieee1284_read_status(3)
- parport_list(3)
- ieee1284_ecp_fwd_to_rev(3)
- ieee1284_close(3)
- ieee1284_epp_read_addr(3)
- ieee1284_epp_read_data(3)
- ieee1284_data_dir(3)
- ieee1284_read_control(3)
- ieee1284_free_ports(3)
- ieee1284_compat_write(3)
- ieee1284_set_timeout(3)
- ieee1284_frob_control(3)
- ieee1284_terminate(3)
- ieee1284_claim(3)
- ieee1284_wait_status(3)
- ieee1284_read_data(3)
- ieee1284_ecp_rev_to_fwd(3)
- ieee1284_epp_write_data(3)
- ieee1284_write_control(3)
- ieee1284_get_deviceid(3)
- ieee1284_unref(3)
- ieee1284_release(3)
- ieee1284_get_irq_fd(3)
- ieee1284_open(3)
- ieee1284_ecp_read_data(3)
- parport(3)
- ieee1284_wait_data(3)
- ieee1284_epp_write_addr(3)
Package: libieee1284-3-dev
apt-get install libieee1284-3-dev
apt-get install libieee1284-3-dev
Manuals in package:
Documentations in package:
Manual
| IEEE1284_ECP_FWD_TO_(3) | Functions | IEEE1284_ECP_FWD_TO_(3) |
NAME
ieee1284_ecp_fwd_to_rev, ieee1284_ecp_rev_to_fwd - ECP direction switching
SYNOPSIS
int ieee1284_ecp_fwd_to_rev(struct parport *port);
int ieee1284_ecp_rev_to_fwd(struct parport *port);
DESCRIPTION
These functions are used to switch directions when in ECP mode. On negotiation to ECP mode the direction is forward (in other words, host-to-peripheral). Use ieee1284_ecp_fwd_to_rev to switch from forward to reverse, and ieee1284_ecp_rev_to_fwd to switch from reverse to forward.
They act on the parallel port associated with port, which must be claimed.
RETURN VALUE
E1284_OK
Direction switched successfully.
E1284_NOTIMPL
The port lacks the required capability. This could
be due to a limitation of this version of libieee1284, or a hardware
limitation.
E1284_INVALIDPORT
The port parameter is invalid (for instance,
perhaps the port is not claimed).
AUTHOR
Tim Waugh <twaugh@redhat.com>
- Author.
COPYRIGHT
Copyright © 2001-2003 Tim Waugh
| 09/18/2007 |