cy(4) [netbsd man page]

CY(4)							   BSD Kernel Interfaces Manual 						     CY(4)

NAME

     cy -- Cyclades Cyclom-{4, 8, 16, 32}Y asynchronous comms board serial device driver

SYNOPSIS

     cy0 at isa? iomem 0xd4000 irq 12
     cy* at pci? dev ? function ?

DESCRIPTION

     This driver provides an interface to Cyclades Cyclom-4Y, Cyclom-8Y, Cyclom-16Y, and Cyclom-32Y asynchronous multiport serial boards.  These
     boards are based around Cirrus Logic CD1400 communication controllers.

     The device minor numbers for this driver are encoded as follows:

	 d c c p p p p p     - bits in the minor device number

	 bits	 meaning
	 ----	 -------
	 ppppp	 physical serial line (i.e. port) to use:
		     0-3 on Cyclom-4Y
		     0-7 on Cyclom-8Y
		     0-15 on Cyclom-16Y
		     0-31 on Cyclom-32Y

	 cc	 card unit number; note this limits the driver to
		 four cards per system

	 d	 set to use as a dial-out line

FLOW CONTROL

     The cy driver makes use of the CD1400's automatic CTS flow control.  In addition, the CD1400's automatic input flow control can be used.
     This requires the kernel configuration option CY_HW_RTS and a special cable that exchanges the RTS and DTR lines.

DIAGNOSTICS

     cy%d: port %d: can't allocate tty	There is not enough memory to allocate tty data structures.

     cy%d: can't allocate input buffer	There is not enough memory to allocate the data input buffer.

     Additional debugging output can be enable with the kernel configuration option CY_DEBUG.  Diagnostic counters may be enabled with the kernel
     configuration option CY_DEBUG1.

SEE ALSO

     termios(4), tty(4)

AUTHORS

     The cy driver was written by Timmo Rossi.

BUGS

     Support for the Cyclom-32Y has not been tested.

BSD
								 November 10, 1997							       BSD

Check Out this Related Man Page

UMCS(4) 						   BSD Kernel Interfaces Manual 						   UMCS(4)

NAME

     umcs -- USB support for serial adapters based on the MCS7820 and MCS7840 chips

SYNOPSIS

     To compile this driver into the kernel, place the following lines in your kernel configuration file:

	   device usb
	   device ucom
	   device umcs

     Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

	   umcs_load="YES"

DESCRIPTION

     The umcs driver provides support for various multiport serial adapters based on the MosCom MCS7820 and MCS7840 chips.  They are 2- or 4-port
     adapters with full-featured 16550-compatible UARTs and very flexible baud generators.  Also, these chips support RS422/RS485 and IrDA opera-
     tions.

     The device is accessed through the ucom(4) driver which makes it behave like a tty(4).

     Different ports on device are presented as sub-units, like /dev/ttyU0.1 and /dev/ttyU0.2.

HARDWARE

     The umcs driver was tested on the following adapters:

     o	 ST Lab U-360 two-port serial USB adapter
     o	 ST Lab U-400 four-port serial USB adapter

SEE ALSO

     tty(4), ucom(4), usb(4)

HISTORY

     The umcs driver appeared in ports since December of 2010.

AUTHORS

     The umcs driver was written by Lev Serebryakov <lev@FreeBSD.org>.

BUGS

     This driver doesn't support access to any fine tunes of chip, like RS522/RS485 mode, non-standard baudrates, etc.

BSD
								 February 25, 2012							       BSD

Linux and UNIX Man Pages

cy(4) [netbsd man page]

Check Out this Related Man Page