On Sat, 20 May 2006, Paul Giblock wrote: > So what is the best way to constantly read packets from the usb > device? My device sends a 32byte report periodically. Is it safe to > call usb_submit_urb() from my hqct_read_callback function? Or should I > use a kthread with usb_bulk_msg()?
The callback/resubmit approach is better. It has much less overhead than using a kthread. Furthermore it allows you to maintain the bandwidth allocation; with usb_bulk_msg() you face the possibility of losing the reserved bandwidth after each URB. Alan Stern ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel