STREAMS/UX for the HP 9000 Reference Manual

Detailed Product Information

STREAMS Drivers and Modules

The conﬁguration of STREAMS drivers and modules is statically deﬁned at

system creation time. The STREAMS subsystem, core drivers and modules

are part of every 10.0 system.

The following sections contain a list of the core drivers and modules,

STREAMS kernel tunable parameters, and STREAMS conﬁguration data

structure (streams_devs[ ]) information. See the master(4) manpage for more

details.

STREAMS Drivers

The core STREAMS drivers are:

• clone—provides the device cloning used by STREAMS.

• strlog—provides the STREAMS logging facility.

• sad—provides the STREAMS module autopush capability.

• echo—loopback test driver used by the verification program, strvf. Refer to the

strvf(1M) manpage.

• pipedev—required for STREAMS-based pipes.

STREAMS Modules

The core STREAMS modules are:

• sc—used by autopush and provides part of the STREAMS module autopush

capability. Refer to the autopush(1M) manpage.

• timod—provides an interface from TLI/XTI to the transport provider.

• tirdwr—another TLI module; provides a read/write interface to the transport

provider.

• pipemod—handles M_FLUSH messages for STREAMS-based pipes.

Miscellaneous STREAMS Functionality

• ffs—file system type required for fattach(3C).