zs man page on OpenBSD

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ZS(4)		     OpenBSD Programmer's Manual (SPARC64)		 ZS(4)

     zs - Zilog 8530 (ZSCC) serial communications driver

     zs* at fhc?
     zs* at sbus?
     zstty* at zs?
     zskbd* at zs?
     wskbd* at zskbd?
     zsms* at zs?
     wsmouse* at zsms?
     option SUNKBD5_LAYOUT=XXX

     The zs is a Zilog 8530 serial interface chip used in SBus-based
     UltraSPARC Sun workstations.  The Zilog 8530 provides two input/output
     channels per instance.  Most Sun workstations include two of these
     interfaces.  One of the interfaces is usually hardwired for use by the
     keyboard and mouse attached to the workstation console.  The zskbd
     devices connect keyboard devices to the generic keyboard driver wskbd.
     The zsms devices connect mice to the generic mouse driver wsmouse(4).
     The remaining additional zs interfaces provide RS-423 and RS-232 serial
     ports for general purpose use.

     The zs driver supports all of the standard tty(4) ioctl calls.  The
     status of the DTR, RTS, CTS, and DCD signals can be queried with TIOCMGET
     command, but, due to limitations in the hardware, only the DTR and RTS
     signals can be modified with TIOCMSET, TIOCMBIC, and TIOCMBIS ioctl(2)

     The zskbd driver supports a number of different key mappings.  By
     default, the layout corresponding to the keyboard model as probed by the
     zskbd driver will be used.	 A different layout can be chosen either with
     the kernel options ``SUNKBD_LAYOUT'' (for type 4 keyboards) and
     ``SUNKBD5_LAYOUT'' (for type 5 keyboards) at compile time or with the
     utility wsconsctl(8) (variable: ``keyboard.encoding'') at runtime.

     Other mappings can be used if the whole keymap is replaced by means of
     wsconsctl(8).  The built-in mappings are at this time:

	   KB_BE   (be) Belgium French (type 4 only).
	   KB_DE   (de) German.
	   KB_DK   (dk) Danish.
	   KB_ES   (es) Spanish.
	   KB_FR   (fr) French (type 5 only).
	   KB_IT   (it) Italian.
	   KB_JP   (jp) Japanese (type 5 only).
	   KB_NL   (nl) Dutch.
	   KB_NO   (no) Norwegian.
	   KB_PT   (pt) Portuguese.
	   KB_SF   (sf) Swiss French.
	   KB_SG   (sg) Swiss German.
	   KB_SV   (sv) Swedish with ``dead accents''.
	   KB_UK   (uk) British.
	   KB_US   (us) English/US keyboard mapping.

     The KB_SV mapping can be used in the KB_NODEAD (.nodead) variant.	This
     switches off the ``dead accents''.

     To set a German keyboard layout, use wsconsctl keyboard.encoding=de.  To
     set it at kernel build time, add the following to the kernel
     configuration file for a type 4 keyboard:

	   option SUNKBD_LAYOUT="KB_DE"

     For a type 5 keyboard:

	   option SUNKBD5_LAYOUT="KB_DE"

     ioctl(2), fhc(4), intro(4), sbus(4), tty(4), wskbd(4), wsmouse(4),

     The zs driver first appeared in 4.4BSD.  Support for the TIOCM* ioctl(2)s
     appeared in OpenBSD 2.3.

     The zs driver now supports cua minor devices, but with this known
     deficiency in the simultaneous outgoing/incoming aspect of the driver:
     The first outgoing connection succeeds, but second and subsequent
     connections fail, apparently due to a getty hang.	The hung getty
     apparently prevents the cua device from being re-opened.

     The kernel does not provide a keyboard layout for all manufactured Sun
     keyboard models.

OpenBSD 4.9		       January 30, 2011			   OpenBSD 4.9

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