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STREAMS Programming Guide |
Part I Application Programming Interface
2. STREAMS Application-Level Components
3. STREAMS Application-Level Mechanisms
4. Application Access to the STREAMS Driver and Module Interfaces
7. STREAMS Framework - Kernel Level
8. STREAMS Kernel-Level Mechanisms
11. Configuring STREAMS Drivers and Modules
14. Debugging STREAMS-based Applications
B. Kernel Utility Interface Summary
Below is sample code that enables a driver to determine if it is running as a regular driver, a module, or a cloneable driver. The open routine returns sflag, which is checked.
if (sflag == MODOPEN)
/* then the module is being pushed */
else if (sflag == CLONEOPEN)
/* then its being opened as a clonable driver */
else
/* its being opened as a regular driver */
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