Hi Ed, I have already started working on first approach - creating device instances dynamically, sort of similar to what lofi does. Thanks for the response.
Regards, Ashwani On Tue, Mar 9, 2010 at 5:54 AM, Edward Pilatowicz <edward.pilatow...@sun.com > wrote: > hey ar, > > most pseudo devices only have one instance. a device instance may have > a large number of minor nodes. if you simply want multiple minor nodes > for your one pseudo device instance, then call ddi_create_minor_node() > with different minor node values and you'll get multiple minor nodes. > this is what lofi, and most other pseudo devices, does. > > if you actually need multiple instances (say because you're using cmlb) > then you can create those via a conf file or you can instantiate them > under a custom pseudo nexus driver. the latter approach is more > flexible but relies on private interfaces in libdevice.so. for an > example of a pseudo driver with multiple instances you can look at > zcons(7d), which is the zones console driver. there is one instance of > zcons instantiated per-zone on the system. the zcons device instances > are created and destroyed by zoneadmd, which is a userland daemon. see > the calls to devctl_*() in usr/src/cmd/zoneadmd/zcons.c > > good luck, > ed > > On Mon, Mar 08, 2010 at 01:03:14PM +0530, Ashwani Raina wrote: > > Hi folks, > > > > I am currently using LDI interfaces to create pseudo devices over a block > > device. > > For the same, I have one driver file and one configuration file. > > > > Now, I need to support more than one block devices at a time. > > By that I mean to say, I should be able to create multiple pseudo devices > on > > multiple target devices mentioned in .conf file. > > Not sure how to do that. Adding extra entry in .conf file is not working. > > May I am doing something wrong. > > > > Here is my .conf file content: > > ==== > > name="lyr" parent="pseudo" instance=1; > > lyr_targ="/dev/dsk/c7d1s2"; > > ==== > > > > Cheers, > > ar > > > _______________________________________________ > > driver-discuss mailing list > > driver-discuss@opensolaris.org > > http://mail.opensolaris.org/mailman/listinfo/driver-discuss > > -- ---- ar ------ "Long you live and high you fly And smiles you'll give and tears you'll cry And all you touch and all you see Is all your life will ever be."
_______________________________________________ driver-discuss mailing list driver-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/driver-discuss
