Messages in this thread | | | From | Fredrik Tolf <> | Date | Thu, 4 Dec 2003 04:38:29 +0100 | Subject | Re: Why is hotplug a kernel helper? |
| |
Greg KH writes: > On Thu, Dec 04, 2003 at 03:00:51AM +0100, Fredrik Tolf wrote: > > Greg KH writes: > > > On Thu, Dec 04, 2003 at 01:04:44AM +0100, Fredrik Tolf wrote: > > > > If you don't mind me asking, I would like to know why the kernel calls > > > > a usermode helper for hotplug events? Wouldn't a chrdev be a better > > > > solution (especially considering that programs like magicdev could > > > > listen in to it as well)? > > > > > > Please see the archives for why this is, it's been argued many times. > > > > I am sincerely sorry for being a bother, but I have spent several > > hours searching far and wide for information on it, both in the > > archives and generally on the web, without any luck in finding > > anything. If it's not too much to ask, would you be as kind as to > > provide a pointer? > > Here was the latest thread where this was brought up: > http://marc.theaimsgroup.com/?t=105544548100008 > > I would suggest reading this post from Linus for a quick summary: > http://marc.theaimsgroup.com/?l=linux-kernel&m=105552804303171 >
Thank you for those references. I must have mistyped something while searching, since all the keywords I searched for were in the text... Sorry for wasting your time on that.
> > Btw., Is there any preferred method of announcing hotplug events to > > user interfaces? > > Yes there is a standard. Have you read the docs at > http://linux-hotplug.sf.net/ ? Also my 2001 OLS paper details the > format the messages should be in, but it's a bit out of date as to the > new values that the 2.6 kernel sends.
No, I haven't. I just put that question in the mail as a side-thing. I had not expected more than a yes/no reply. In any case, I will read it. Thanks again.
> What do you want to use the hotplug interface for that it currently does > not do?
Admittedly, I'm still using the RH8 hotplug scripts, and I suspect improvements have been made since then. I was mainly looking for a way to auto-mount USB mass storage devices without having to reconfigure anything as root. I have all the info I need now, though.
Thank you very much for your help.
Fredrik Tolf
- 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/
| |