Dear Group, Some time before I have already asked about a review of my driver. In the meantime, I have done some rework and no semaphore in interrupt context anymore :)
My driver reads data from a USB device and offers them to a device file. However I do not yet know, how to handle situations when the user requests data, but the driver cannot deliver. If i return -EAGAIN in the read functions, 'cat' says that the resource is temporarily unavailable. I i just run "schedule" to do something else in the meantime, the system actually waits for new data, but nothing can interrupt the thing(no CTRL C, no kill -9 , nothing!) My intent is to do an interruptible blocking in this case. How would i implement this properly ? -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer ------------------------------------------------------------------------- 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
