[PATCH v2 1/1] usbip: auto retry for concurrent attach

This patch adds recovery from false busy state on concurrent attach operation. The procedure of attach operation is as below. 1) Find an unused port in /sys/devices/platform/vhci_hcd/status. (userspace) 2) Request attach found port to driver through /sys/devices/platform/vhci_hcd/attach.

Re: Gadget driver & virtual hub

On Sat, 2017-05-27 at 21:58 -0400, Alan Stern wrote: > Vbus is the +5V power provided on the USB bus by the host controller.  > Bus-powered devices use it as their sole power source, and self-powered > devices may use it in conjunction with their own alternative power > source. > > If a UDC

Re: [PATCH v3 0/2] usb: Check for DMA capable buffer sanity

On Fri, May 05, 2017 at 02:08:31PM -0700, Florian Fainelli wrote: > On 04/25/2017 05:56 PM, Florian Fainelli wrote: > > Changes in v3: > > > > - added check in usb_gadget_map_request_by_dev (Felipe), new patch > > - improved commit message description (Clemens) > > - added additiona checks for