lkml.org 
[lkml]   [2001]   [May]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: LANANA: To Pending Device Number Registrants
> For identifying this is probably the right approach. However identifying is 
> not enough, as the ioctl discussion has shown. Capabilities are needed. How
> can the device registry provide that information ?

My feedback on "device registry 0.1" was that I really liked the
approach of _modeling_ devices by attributes ... which reminded me
of the good things in "attribute based naming" a la X.500/LDAP
models. I suspect 0.2 went too far, using XML to expose those
attributes to userspace ... :)

If each device had a directory node, those directory nodes could be
grouped as a "registry" ... the directory contents would list the various
bus-specific or type-specific capabilities/attributes. Would those
directory nodes be the /dev/... or /devfs/... nodes? I suspect not.


> If we register it together
> with the device, we might spend a lot of resources needlessly and can't deal
> with devices whose capabilities change dynamically.

So obviously such a registry should query the drivers/busses directly.


> In addition how do we export the information ? Proc ?

I think Tim has some ideas here, given a patch I scanned recently...

- Dave


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 12:53    [W:0.048 / U:6.404 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site