Hi Alan and Sarah,
I confirmed that simply calling usb_set_altinterface (which via libusb
calls the kernel function usb_set_interface) does correctly clear the
toggle bits for USB2 or sequence number for USB3 on an XHCI host
controller, even when the alternate interface setting is the same as
the
for these transactions.
Thanks.
Yuliya
On Tue, Oct 2, 2012 at 5:23 PM, Yuliya T yuliyat...@gmail.com wrote:
We ran into a problem when using ASMedia Technology Inc. ASM1042
SuperSpeed USB Host Controller (integrated on the desktop's
motherboard) with Linux xHCI driver. The host is sending
debugging turned on).
Thanks,
Yuliya
On Tue, Oct 2, 2012 at 5:09 PM, Yuliya T yuliyat...@gmail.com wrote:
Hi Sarah,
Re: URB Cancellation for USB 2.0 device on xHCI host
Which host controller are you running under? Please send the output of
`sudo lspci -vvv` and `sudo lspci -vvv -n`.
I have
Hi Sarah,
2. Clear Halt of EP
Also note that the xHCI hardware will only allow the Reset Endpoint to
complete if the endpoint was actually halted due to a stall, babble,
transfer error, etc. It won't reset the endpoint toggles or sequence
number at arbitrary points, so we can't reset the
Dear Sarah,
We noticed a couple of problems with the Linux xHCI driver:
1. There is a problem with URB cancellation for USB 2.0 device on USB
3.0 host. When we disable our device, we cancel all pending URBs by
calling ioctl with the request code of USBDEVFS_DISCARDURB. When we
re-enable our
