On Mon, 18 Aug 2003, Matthias Bruestle wrote: > Mahlzeit > > > I'm currently testing the cyberJack smart card reader under 2.6.0-t2 > using a patched cyberJack driver (added locking) together with a UHCI > host controller. > > The problem is, that it works the first open/io/io/.../close sequence > after inserting it, but fails after the second open. This happens with > > - normal cyberJack driver using Int INs > - modified cyberJack driver using Bulk IN polling > - generic USB serial driver using Bulk IN polling > > The symptom is, that the cyberJack driver never receives any data after > the second open, but when looking at the USB data going over the cable > the device clearly sends an interrupt response with data. When looking > at the uhci_irq, it is called at about the time a Int IN packet should > come and when there is only one transfer (Int IN) in the list. But this > Int IN is still flagged ACTIVE, and is therefore ignored by the > interrupt handler. > > Are there already any patches which could help fixing this problem? > Or does anybody have an idea what I can try?
It's curious that you see a USB interrupt transfer occur but the controller does not end the request. Can you post the contents of /proc/driver/uhci? That might have some clues. Alan Stern ------------------------------------------------------- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa00100003ave/direct;at.aspnet_072303_01/01 _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
