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nodev(9f) [bsd man page]

nodev(9F)						   Kernel Functions for Drivers 						 nodev(9F)

nodev - error return function SYNOPSIS
#include <sys/conf.h> #include <sys/ddi.h> int nodev(); INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI). DESCRIPTION
nodev() returns ENXIO. It is intended to be used in the cb_ops(9S) data structure of a device driver for device entry points which are not supported by the driver. That is, it is an error to attempt to call such an entry point. RETURN VALUES
nodev() returns ENXIO. CONTEXT
nodev() can be only called from user context. SEE ALSO
nulldev(9F), cb_ops(9S) Writing Device Drivers SunOS 5.10 27 Jan 1993 nodev(9F)

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dev_ops(9S)						    Data Structures for Drivers 					       dev_ops(9S)

dev_ops - device operations structure SYNOPSIS
#include <sys/conf.h> #include <sys/devops.h> INTERFACE LEVEL
Solaris DDI specific (Solaris DDI). DESCRIPTION
dev_ops contains driver common fields and pointers to the bus_ops and cb_ops(9S). Following are the device functions provided in the device operations structure. All fields must be set at compile time. devo_rev Driver build version. Set this to DEVO_REV. devo_refcnt Driver reference count. Set this to 0. devo_getinfo Get device driver information (see getinfo(9E)). devo_identify This entry point is obsolete. Set to nulldev. devo_probe Probe device. See probe(9E). devo_attach Attach driver to dev_info. See attach(9E). devo_detach Detach/prepare driver to unload. See detach(9E). devo_reset Reset device. (Not supported in this release.) Set this to nodev. devo_cb_ops Pointer to cb_ops(9S) structure for leaf drivers. devo_bus_ops Pointer to bus operations structure for nexus drivers. Set this to NULL if this is for a leaf driver. devo_power Power a device attached to system. See power(9E). STRUCTURE MEMBERS
int devo_rev; int devo_refcnt; int (*devo_getinfo)(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result); int (*devo_identify)(dev_info_t *dip); int (*devo_probe)(dev_info_t *dip); int (*devo_attach)(dev_info_t *dip, ddi_attach_cmd_t cmd); int (*devo_detach)(dev_info_t *dip, ddi_detach_cmd_t cmd); int (*devo_reset)(dev_info_t *dip, ddi_reset_cmd_t cmd); struct cb_ops *devo_cb_ops; struct bus_ops *devo_bus_ops; int (*devo_power)(dev_info_t *dip, int component, int level); SEE ALSO
attach(9E), detach(9E), getinfo(9E), probe(9E), power(9E), nodev(9F) Writing Device Drivers SunOS 5.10 11 Apr 2003 dev_ops(9S)

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