On Sat, Oct 23, 2010 at 8:02 PM, feng xiangjun <fengxj325@xxxxxxxxx> wrote: > first of all, it's not a regression (all kernels pre-2.6.36 not work either). > > I just tried to use an usb security key with 2.6.36. > It failed with message: > > usbhid 2-2:1.0: couldn't find an input interrupt endpoint And indeed your HID device has not interrupt endpoint. I am not so sure if this is a valid HID device or not. Some people seem to suggest that HID device needs to at least have an Interrupt IN endpoint. Last time we had a discussion in the libusb mailing list but I did not remember the final conclusion. Your HID device only uses the control endpoint for feature reports. > Yes, in windows, it can be accessed by a proprietary program. How does that program work? Is it a mini HID filter driver (like those mini filter for your mouse/keyboard/gamepad which is used together with a user space control program) or a user space program (using native HID API)? If it is a user space program, you can try to use libusb under Linux to simulate it. Basically you need to reverse engineering the device (using USB sniffer) before you can try to use it under Linux. -- Xiaofan -- 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
