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cy(4) [netbsd man page]

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

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

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

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 <>. 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
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