Re: polling mechanism for media presence
Alan Stern <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Tue, 20 Mar 2007, Allen Curtis wrote: > >>> I am sorry. HAL? Where do I get this daemon? > >> > >> It's part of the hal package, which is included in Fedora and > >> presumably > >> other distributions as well. See > >> > >> http://www.freedesktop.org/Software/hal > > > > What would an embedded distro use though? HAL takes up > > multi-megabytes. > > A swapless system, with say 32 MB total RAM, probably won't find that > > to be a usable solution ... > > > > Gee Dave, > > How did you know? That is exactly what we have, an embedded system with > 32MB of RAM and no swap! > > We created the unusual_device entry to launch a kernel thread to do > this polling. This solution does not "feel" right but I do not know > what else to do. Another approach is to do the polling in userspace rather than in the kernel. You could write a daemon that would constantly probe all the removable SCSI disk drives. I don't know of any existing standalone program to do that. Alan Stern ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel