On Thu, 8 Mar 2007, Gene Heskett wrote: > I believe the problem to be that when their version of upsd is trying to > open the /dev/name its given, it is assuming and hard coded to do the > ioctl's to set the ports speed in baudrate, width of word, parity etc.
Hi Gene, first, sorry for replying with some delay, it took some time until I have hit your message in my mail backlog. (btw your private message to me bounced because you have combined the two addressess of mine - two possibilities are [EMAIL PROTECTED] or [EMAIL PROTECTED], there is no [EMAIL PROTECTED] :) ). > Getting failure messages for that, it retrys the open until it has 1024 > links to /dev/hiddev0 according to an lsof|grep hiddev0, all of which > presumably have failed so it never actually opens the /dev/hiddev0 port > in r/w mode successfully. Do I understand it correctly that the upsd you have is trying to issue some insane ioctl() calls on the hiddev interface, and when it naturally fails, it keeps retrying forever? > My proposal, and I'll see if I can make a patch, is to add to the > hiddev.c code, stubs for these otherwise useless functions that do > nothing but return a 0 indicating success so that these legacy drivers > can make use of a port whose data is just fine but fails these > configuration things that don't mean squat to hiddev anyway. > Would this effort at making legacy drivers who think they are using > /dev/ttySx, work with /dev/hiddev constitute an acceptable reason for > such a patch to hiddev.c? So these broken programs think that while talking to hiddev device, they are in fact receiving data from serial port, right? Actually it would be quite nasty (but not impossible) to put such tweaks into the hiddev code - wouldn't it be easier to patch these applications to simply not issue the braindamaged ioctl()s to hiddev? Or you don't have access to source code of these? Thanks, -- Jiri Kosina ------------------------------------------------------------------------- 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 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
