On Mon, 10 Oct 2005, Franck wrote: > Hi, > > I'm still debugging my hcd. I still have some issues, and one of them > is related to urb->hcpriv usage. Following explain how I use it: > urb->hcpriv keeps a pointer on a structure which gives an internal > description of the urb for my hcd. This field is initialized in > "hcd->urb_enqueue" method. Then it's set to NULL just before giving > back the urb to the driver through "usb_hcd_giveback_urb".
That's all correct. > But sometime this field is NULL when starting an URB transfer ! That's > normally impossible since _all_ URBs submitted to an HCD use > "hcd->urb_enqueue", isn't it ? > Could someone help me on this point ? The only way it can happen is if your HCD set urb->hcpriv to NULL earlier, or never set it to a non-NULL value. It must be a bug in the HCD. Alan Stern ------------------------------------------------------- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
