Re: polling mechanism for media presence
Alan Stern <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Wed, 21 Mar 2007, Allen Curtis wrote: > > 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. > > > > This is our current, inefficient method. We actually have a batch file You mean a shell script? Or a cron job? > which sits around in a polling loop trying to mount or unmount the > device depending on the current state. > > It does work but it isn't very efficient. Not efficient in what sense? Uses too much memory? Too much system overhead? Too slow to respond? By many metrics (though not all!) C programs are more efficient than shell scripts. > We actually did it this way > as a "quick fix". I guess we stumbled onto the right solution? The right sort of solution, anyway. 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