Adaptec AHA-1520A Wartungshandbuch PDF herunterladen (Seite 422)

zsh(7D) Devices SunOS 5.5

long cts; /∗ CTS timeouts ∗/

long dcd; /∗ Carrier drops ∗/

long overrun; /∗ receive overrun ∗/

long underrun; /∗ transmit underrun ∗/

long ierror; /∗ input error ∗/

long oerror; /∗ output error ∗/

long nobuffers; /∗ receive side memory allocation failure ∗/

};

ERRORS An open() will fail if a STREAMS message block cannot be allocated, or:

ENXIO The unit beingopened does not exist.

EBUSY The device is in use by another serial protocol.

An ioctl() will fail if:

EINVAL An attempt was made to select an invalid clocking source.

EINVAL The baud rate speciﬁed for use with the baud rate generator would

translate to a null time constant in the SCC’s registers.

FILES /dev/zsh[0-1],/dev/zsh character-special devices

/usr/include/sys/ser_sync.h header ﬁle specifying synchronous serial communica-

tion deﬁnitions

SEE ALSO syncinit(1M), syncloop(1M), syncstat(1M), ioctl(2), open(2), read(2), write(2), zs(7D)

Refer to the Zilog Z8530 SCC Serial Communications Controller for details of the SCC’s

operation and capabilities.

DIAGNOSTICS zsh data open failed, no memory, rq=nnn

zsh clone open failed, no memory, rq=nnn

A kernel memory allocation failed for one of the private data structures. The

value of nnn is the address of the read queue passed to open(2).

zsh_open: can’t alloc message block

The open could not proceed because an initialSTREAMS message block could

not be made available for incoming data.

zsh: clone device d must be attached before use!

An operation was attempted through a control path before that path had been

attached to a particular serial channel.

zshn: invalid operation for clone dev.

An inappropriateSTREAMS message type was passed through a control path.

OnlyM_IOCTL andM_PROTO message types are permitted.

7D-418 modiﬁed 20 Jan 1993

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Adaptec AHA-1520A Wartungshandbuch Seite 422