pci_find_next_ext_capability(9) [centos man page]

PCI_FIND_NEXT_EXT_CA(9) 					Hardware Interfaces					   PCI_FIND_NEXT_EXT_CA(9)

NAME

       pci_find_next_ext_capability - Find an extended capability

SYNOPSIS

       int pci_find_next_ext_capability(struct pci_dev * dev, int start, int cap);

ARGUMENTS

       dev
	   PCI device to query

       start
	   address at which to start looking (0 to start at beginning of list)

       cap
	   capability code

DESCRIPTION

       Returns the address of the next matching extended capability structure within the device's PCI configuration space or 0 if the device does
       not support it. Some capabilities can occur several times, e.g., the vendor-specific capability, and this provides a way to find them all.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   PCI_FIND_NEXT_EXT_CA(9)

tran_getcap(9E) 						Driver Entry Points						   tran_getcap(9E)

NAME

       tran_getcap, tran_setcap - get/set SCSI transport capability

SYNOPSIS

       #include <sys/scsi/scsi.h>

       int prefixtran_getcap(struct scsi_address *ap, char *cap, int whom);

       int prefixtran_setcap(struct scsi_address *ap, char *cap, int value, int whom);

INTERFACE LEVEL

       Solaris architecture specific (Solaris DDI).

PARAMETERS

       ap	Pointer to the scsi_address(9S) structure.

       cap	Pointer to the string capability identifier.

       value	Defines the new state of the capability.

       whom	Specifies whether all targets or only the specified target is affected.

DESCRIPTION

       The  tran_getcap()  and	tran_setcap() vectors in the scsi_hba_tran(9S) structure must be initialized during the HBA driver's attach(9E) to
       point to HBA entry points to be called when a target driver calls scsi_ifgetcap(9F) and scsi_ifsetcap(9F).

       tran_getcap() is called to get the current value of a capability specific to features provided by the HBA hardware or driver.  The name	of
       the capability cap is the NULL terminated capability string.

       If  whom  is  non-zero,	the  request  is for the current value of the capability defined for the target specified by the  scsi_address(9S)
       structure pointed to by ap; if whom is 0, all targets are affected; else, the target specified by the scsi_address structure pointed to	by
       ap is affected.

       tran_setcap() is called to set the value of the capability cap to the value of value. If whom is non-zero, the capability should be set for
       the target specified by the scsi_address(9S) structure pointed to by ap; if whom is 0, all targets are affected; else, the target specified
       by  the scsi_address structure pointed to by ap is affected. It is recommended that HBA drivers do not support setting capabilities for all
       targets, that is, whom is 0.

       A device may support only a subset of the defined capabilities.

       Refer to scsi_ifgetcap(9F) for the list of defined capabilities.

       HBA drivers should use scsi_hba_lookup_capstr(9F) to match cap against the canonical capability strings.

RETURN VALUES

       tran_setcap() must return  1 if the capability was successfully set to the new value, 0 if the HBA  driver does not  support  changing  the
       capability, and	-1 if the capability was not defined.

       tran_getcap() must return the current value of a capability or  -1 if the capability was not defined.

SEE ALSO

       attach(9E), scsi_hba_attach(9F), scsi_hba_lookup_capstr(9F), scsi_ifgetcap(9F), scsi_address(9S), scsi_hba_tran(9S)

       Writing Device Drivers

SunOS 5.10							    30 Aug 1995 						   tran_getcap(9E)