Technical data

SunOS 5.5 Devices tr(7D)

The DL_SET_PHYS_ADDR_REQ primitive changesthe 6-octet token ring address

currently associated (attached) to this stream. The credentials of the process which origi-

nally opened this stream must be superuser or an EPERM error is returned in the

DL_ERROR_ACK. This primitive is destructive in that it affects all other current and

future streams attached to this device. Once changed, all streams subsequently opened

and attached to this device will obtain this new physical address. The new physical

address will remain in effect until this primitive is used to change the physical address

again or the system is rebooted, whichever comes ﬁrst.

CONFIGURATION The /kernel/drv/tr.conf ﬁle supports the following options:

intr Speciﬁes the IRQ level for the board. Note that if the dip switches for the

board are set to use the cascade interrupt, IRQ 2, the IRQ level speciﬁed

in the conﬁguration ﬁle should be IRQ 9.

ioaddr Speciﬁes the beginning I/O port address occupied by the board.

reg The ﬁrst register property speciﬁes the location and size of the board’s

BIOS/MMIO area. The second register property speciﬁes the location

and size of the board’s shared RAM.

It is important to ensure that there are no conﬂicts for the board’s I/O port, shared RAM,

or IRQ level.

FILES /dev/tr

/kernel/drv/tr.conf tr conﬁguration ﬁle.