Messages in this thread | | | Date | Mon, 21 May 2001 12:45:41 -0500 (CDT) | From | Oliver Xymoron <> | Subject | Re: no ioctls for serial ports? [was Re: LANANA: To Pending DeviceNum |
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On Sun, 20 May 2001, Alexander Viro wrote:
> On Sun, 20 May 2001, Abramo Bagnara wrote: > > > > It may have several. Which one? > > > > Can you explain better this? > > Example: console. You want to be able to pass font changes. I'm > less than sure that putting them on the same channel as, e.g., > keyboard mapping changes is a good idea.
If you've got side channels that are of a packet nature (aka commands), then they can all happily coexist on one device. If you've got channels that are streams or intended for mmap, those ought to be different devices.
> Moreover, we have channels that are not tied to a particular device - > they are for a group of them. Example: setting timings for IDE controller. > Sure, we can just say "open /dev/hda instead of /dev/hda5", but then we > are back to the "find related file" problem you tried to avoid.
Hmmm.. I suspect there's a permission issue lurking here anyway. It's probably valid to want to give out raw partition access, say to a database user, but not to give out permission to fiddle with the underlying drive.
-- "Love the dolphins," she advised him. "Write by W.A.S.T.E.."
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