Help, how can I create the minor number if

I know my device path is c0t3d2s2. eg. how can create a minor number which will be used as an input to makedevice() based upon the above info. Thanks in advance.

Hi!
The primery thing under Solaris is /device tree. The entries in this
directory, so called device special files or minor nodes, are created when drivers
attached/loaded, usually in attach routine.
The device special files are created under /devices with a help of
ddi_create_minor_node. There is a way to create compatibility links
under /dev like /dev/dsk/c0t3d2s2. How to do it?
Each minor node has so called "node type" (see:
ddi_create_minor_node(9F), /usr/include/sys/sunddi.h).
Solaris has programs family (devfsadm in S8) to make links into /dev,
according "node type"
/usr/sbin/disks - makes links for "node type" = DDI_NT_BLOCK
/usr/sbin/tapes - makes links for "node type" = DDI_NT_TAPE
/usr/sbin/ports - makes links for "node type" = DDI_NT_SERIAL
/usr/sbin/audlinks - for "node type" = DDI_NT_AUDIO
/usr/sbin/devlinks - for "node type" = DDI_PSEUDO and some other types.
These programs are called each time the system is reconfiguration-
booted. They only know predefined "node type" and have some internal
rools, expressed by regular expressions, e.g. for "audlinks":
$ strings /usr/lib/devfsadm/linkmod/SUNW_audio_link.so
((nt)|(te)|(aux))\,((0)|(0ctl)|(d)|(b1)|(b2)|(mgt)|(dtrace))
sound,
sound/([0-9]+)
isdn/([0-9]+)
sound,
sound/
isdn/
mgt,mgt
isdn/
/mgt
audio
ddi_audio
audio
^sound/[0-9]+(ctl)?$
audio
^isdn/[0-9]+/mgt$
audio
^isdn/[0-9]+/aux/0(ctl)?$
audio
^isdn/[0-9]+/(nt)|(te)/((dtrace)|(mgt)|(b1)|(b2)|(d))$
audio
^audio(ctl)?$
SUNW_audio_link: minor_init: regular expression bad: '%s'
((nt)|(te)|(aux))\,((0)|(0ctl)|(d)|(b1)|(b2)|(mgt)|(dtrace))
audio
sound/%d
audioctl
sound/%dctl
SUNW_audio_link: audio_process: can't find match for'%s'
When you buld /dev subtree for your driver you must either to follow
they demands or create links by hand (by script).
You can also set the access rights for the device special files from
within the driver.
You can do it with a help of "add_drv". See -m key. Information from
"add_drv -m" fall into "/etc/minor_perm" and will use each time when
minor node will create.
Vitaly Filatov
Moscow, Russia
[email protected]

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