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slave(9r)
NAME
  slave - VMEbus: Checks that the device is valid for this controller

SYNOPSIS
  int slave(
	  struct device *device,
	  io_handle_t addr1 );

ARGUMENTS
  device
      Specifies a pointer to the VMEbus device's device data structure. The
      VMEbus configuration code passes this pointer to the driver's slave()
      routine. The routine can thus reference such information as the logical
      unit number of the device, whether the device is functional, and the
      controller number associated with the controller that this device is
      connected to.

  addr1
      Specifies an I/O handle that you can use to reference a device register
      located in the VMEbus address space.  This I/O handle is created,
      passed, and can be used in the same manner as the addr1 I/O handle
      passed to probe(); see the reference description of probe().

      If a second CSR was specified in a VBA_Option entry in the
      /etc/sysconfigtab file, the VMEbus configuration code passes
      information in the addr2 member of the device's controller data
      structure pointer.  This member contains an I/O handle that you can use
      to reference a device register located in the VMEbus onboard memory.
      This I/O handle is created, stored, and can be used in the same manner
      as the second I/O handle described for probe(); see the reference
      description of probe().

ENTRY POINT
  The driver data structure

DESCRIPTION
  A device driver's slave() routine is called only for a controller that has
  slave devices connected to it. This routine is called once for each slave
  attached to the controller.

  The arguments you pass to the slave() routine differ according to the bus
  on which the driver operates. The SYNOPSIS section shows the arguments
  associated with a slave() routine for a VMEbus.






RETURN VALUES
  The slave() routine returns a nonzero value if the device is present.



SEE ALSO
  Kernel Routines: probe(9r)

Index for Section 9

Alphabetical listing for S

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