Re: [linux-usb-devel] USB throughput problem

2003-03-07 Thread David Brownell
When I do several back to usb_bulk_msg calls (64 byte writes), I notice each one takes about 1 ms to complete. I decided to probe the usb trace on the hardware. I noticed that even when the device and driver are idle, I see packets being transmitted every 1ms. I am showing my ignorance here, b

[linux-usb-devel] USB throughput problem

2003-03-07 Thread Torry Akins
Hi, I just started developing a driver for the USB 2.0 data acquisition board I just built. I based the driver design on usb-skeleton.c file. Everything is working fine so far, but I am having a throughput problem. I am currently testing the device plugged into a USB 1 controller. When I do se