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controller(9s)
NAME
controller - General: Contains members that store information about
hardware resources and store data for communication between the kernel and
the device driver
SYNOPSIS
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Member Name Data Type
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ctlr_mbox u_long *
bus_hd struct bus *
nxt_ctlr struct controller *
dev_list struct device *
driver struct driver *
ctlr_type int
ctlr_name char *
ctlr_num int
bus_name char *
bus_num int
rctlr int
slot int
alive int
pname char *
port struct port *
intr int (**intr)()
addr caddr_t
addr2 caddr_t
flags int
bus_priority int
ivnum int
priority int
cmd int
physaddr caddr_t
physaddr2 caddr_t
private void * [8]
conn_priv void * [8]
rsvd void * [8]
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MEMBERS
ctlr_mbox
Specifies a pointer to the mailbox data structure for hardware
platforms that access I/O space through hardware mailboxes. The bus
adapter code sets this member.
bus_hd
Specifies a pointer to the bus data structure to which this controller
is connected.
nxt_ctlr
Specifies a pointer to the next controller at this level.
dev_list
Specifies a linked list of devices connected to this controller.
driver
Specifies a pointer to the driver data structure for this controller.
ctlr_type
Specifies the controller type.
ctlr_name
Specifies the controller name.
ctlr_num
Specifies the controller number.
bus_name
Specifies the name of the bus to which this controller is connected.
bus_num
Specifies the number of the bus to which the controller is connected.
rctlr
Specifies the remote controller number (for example, the SCSI ID).
slot
Specifies the bus slot or node number.
alive
Specifies a flag word to indicate the current status of the controller.
pname
Specifies a pointer to the port name for this controller, if
applicable.
port
Specifies a pointer to the port data structure for this controller, if
applicable.
intr
Specifies an array that contains one or more entry points for the
controller interrupt handlers.
addr
Specifies the address of the device registers or memory.
addr2
Specifies an optional second virtual address for this controller. This
member is set if there are two CSR spaces.
flags
Specifies controller-specific flags.
bus_priority
Specifies the configured VMEbus priority level of the device. Only
drivers operating on the VMEbus use this member.
ivnum
Specifies an interrupt vector number. Only drivers operating on the
VMEbus use this member.
priority
Specifies the system priority level (SPL) that can be used to block
interrupts from this device. Only drivers operating on the VMEbus use
this member.
cmd Specifies a field that is not currently used.
physaddr
Specifies the physical address that corresponds to the virtual address
set in the addr member.
physaddr2
Specifies the physical address that corresponds to the virtual address
set in the addr2 member.
private
Specifies private storage for use by this controller or controller
type.
conn_priv
Specifies private storage for use by the bus to which this controller
is connected.
rsvd
This member is reserved for future expansion of the data structure.
DESCRIPTION
The controller data structure represents an instance of a controller
entity, one that connects logically to a bus. A controller can control
devices that are directly connected or can perform some other controlling
operation, such as a network interface or terminal controller operation.
FILES
<io/common/devdriver.h>
SEE ALSO
Data Structures: bus(9s), device(9s), driver(9s)
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Index for Section 9 |
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Alphabetical listing for C |
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Top of page |
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