DOC HOME SITE MAP MAN PAGES GNU INFO SEARCH PRINT BOOK
 
UDI driver coding basics

Channel operations

At this point in the driver code, we've defined all the necessary elements needed by the various channel operations that will do the work of the driver and interface otherwise with the UDI environment. Now we define the channel operations.

Both the udi_cmos and pseudod sample drivers define three groups of channel operations:

The remainder of the code for both the udi_cmos and pseudod sample drivers defines the operations for these channels.

See Function Call Classifications and Calling Sequence and Naming Conventions in the UDI Core Specification for a review of driver function types, channel operations, and callback function conventions.


Next topic: udi_cmos parent channel operations
Previous topic: Driver initialization structure

© 2005 The SCO Group, Inc. All rights reserved.
OpenServer 6 and UnixWare (SVR5) HDK - 19 June 2005