Tilman wrote: > I am in the process of writing firmware for an USB device based on > an 8051 core. What device is that? Is it a Cypress FX2 or an SiLabs C8051? > I am testing it against linux kernel driver. Depending on the device it may be worth exploring also the libusb alternative, allowing you to work only in userspace. > The urb eventually times out. Via debug FS I can see that the urb is > indeed submitted. I suspect the firmware to be responsible for this. That's quite likely. > I would like to exclude the linux test driver owever, That doesn't make a lot of sense - if you take the driver away then there is nothing that will talk to your device, so there will be no traffic. > and wonder if there is a cheap way to monitor what is happening on > the USB bus itself. usbmon in debugfs is as good as it gets with no dedicated hardware bus analyzer. //Peter -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
