svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
ddi_create_minor_node(9f)
ddi_create_minor_node(9F) Kernel Functions ddi_create_minor_node(9F)
NAME
ddi_create_minor_node - Create a minor node for this device
SYNOPSIS
#include <sys/stat.h>
#include <sys/sunddi.h>
int ddi_create_minor_node(dev_info_t *dip, char *name, int spec_type,
minor_t minor_num, char *node_type, int flag);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI).
PARAMETERS
dip
A pointer to the device's dev_info structure.
name
The name of this particular minor device.
spec_type
S_IFCHR or S_IFBLK for character or block minor devices respec‐
tively.
minor_num
The minor number for this particular minor device.
node_type
Any string literal that uniquely identifies the type of node. The
following predefined node types are provided with this release:
DDI_NT_SERIAL For serial ports
DDI_NT_SERIAL_MB For on board serial ports
DDI_NT_SERIAL_DO For dial out ports
DDI_NT_SERIAL_MB_DO For on board dial out ports
DDI_NT_BLOCK For hard disks
DDI_NT_BLOCK_CHAN For hard disks with channel or target num‐
bers
DDI_NT_CD For CDROM drives
DDI_NT_CD_CHAN For CDROM drives with channel or target num‐
bers
DDI_NT_TAPE For tape drives
DDI_NT_NET For DLPI style 1 or style 2 network devices
DDI_NT_DISPLAY For display devices
DDI_PSEUDO For pseudo devices
flag
If the device is a clone device then this flag is set to CLONE_DEV
else it is set to 0.
DESCRIPTION
ddi_create_minor_node() provides the necessary information to enable
the system to create the /dev and /devices hierarchies. The name is
used to create the minor name of the block or character special file
under the /devices hierarchy. At-sign (@), slash (/), and space are not
allowed. The spec_type specifies whether this is a block or character
device. The minor_num is the minor number for the device. The node_type
is used to create the names in the /dev hierarchy that refers to the
names in the /devices hierarchy. See disks(8), ports(8), tapes(8), de‐
vlinks(8). Finally flag determines if this is a clone device or not,
and what device class the node belongs to.
RETURN VALUES
ddi_create_minor_node() returns:
DDI_SUCCESS
Was able to allocate memory, create the minor data structure, and
place it into the linked list of minor devices for this driver.
DDI_FAILURE
Minor node creation failed.
CONTEXT
The ddi_create_minor_node() function can be called from user context.
It is typically called from attach(9E) or ioctl(9E).
EXAMPLES
Example 1 Create Data Structure Describing Minor Device with Minor Num‐
ber of 0
The following example creates a data structure describing a minor de‐
vice called foo which has a minor number of 0. It is of type
DDI_NT_BLOCK (a block device) and it is not a clone device.
ddi_create_minor_node(dip, "foo", S_IFBLK, 0, DDI_NT_BLOCK, 0);
SEE ALSO
add_drv(8), devlinks(8), disks(8), drvconfig(8), ports(8), tapes(8),
attach(9E), ddi_remove_minor_node(9F)
Writing Device Drivers in Oracle Solaris 11.4
NOTES
If the driver is for a network device (node_type DDI_NT_NET), note
that the driver name will undergo the driver name constraints identi‐
fied in the NOTES section of dlpi(4P). Additionally, the minor name
must match the driver name for a DLPI style 2 provider. If the driver
is a DLPI style 1 provider, the minor name must also match the driver
name with the exception that the ppa is appended to the minor name.
Non-gld(4D)-based DLPI network streams drivers are encouraged to switch
to gld(4D). Failing this, a driver that creates DLPI style-2 minor
nodes must specify CLONE_DEV for its style-2 ddi_create_minor_node()
nodes and use qassociate(9F). A driver that supports both style-1 and
style-2 minor nodes should return DDI_FAILURE for DDI_INFO_DEVT2IN‐
STANCE and DDI_INFO_DEVT2DEVINFO getinfo(9E) calls to style-2 minor
nodes. (The correct association is already established by qassoci‐
ate(9F)). A driver that only supports style-2 minor nodes can use
ddi_no_info(9F) for its getinfo(9E) implementation. For drivers that do
not follow these rules, the results of a modunload(8) of the driver or
a cfgadm(8) remove of hardware controlled by the driver are undefined.
WARNING
Drivers must remove references to GLOBAL_DEV, NODEBOUND_DEV, NODESPE‐
CIFIC_DEV, and ENUMERATED_DEV to compile under Solaris 10 and later
versions.
Oracle Solaris 11.4 7 Jul 2011 ddi_create_minor_node(9F)