sdi_init(D3sdi)

sdi_init -- initialize the SDI driver

Synopsis (Not in current SDI version)

   #include <sys/sdi.h>

   extern int sdi_started;
   

   void sdi_init();

Description

The sdi_init( ) function initializes the SDI driver to accept SDI functions. The sdi_started flag is provided so that a target driver can determine if another target driver may have already called the sdi_init( ) function.

Return values

None

Usage

The system automatically calls the sdi_init( ) function in all current versions of the SDI interface.

Context and synchronization

Initialization context.

Applicable hardware

All.

Version applicability

sdi: 1, 2, 3 system drivers.

Differences between versions

Drivers running on UNIX SVR4.2 and earlier releases had to explicitly call this function. Only one call was required for all drivers on the system, so each driver that called this function first checked that no other driver had already called the function.

Examples

This example shows the sequence of instructions used to test the sdi_started( ) function and call the sdi_init( ) function:

      extern int sdi_started
      ...
      /* Check to see if the Host Adapter driver has
       * already been started.
       */
      if( !sdi_started )
      {
              /* Call the Host Adapter driver init routine */
              sdi_init();
      }
      ...