Re: Standard USB Descriptor question

2017-01-15 Thread bruce m beach
On 1/13/17, Greg KH <gre...@linuxfoundation.org> wrote: > On Fri, Jan 13, 2017 at 07:24:10PM -0800, bruce m beach wrote: >> Hello everybody >> >> I have been stuck for ages trying to figure out something >> in the Standard USB Descriptor during the enumeration.

Standard USB Descriptor question

2017-01-13 Thread bruce m beach
Hello everybody I have been stuck for ages trying to figure out something in the Standard USB Descriptor during the enumeration. It looks like it should should be quite simple but I am not getting it because maybe some mind block, maybe becuase the documentation is unclear, or maybe because I'm

system awareness of endpoints

2016-03-14 Thread bruce m beach
Greg wrote: > lsusb is looking at the descriptor that the device originally gave the > operating system and parsing that. You can't dynamically change your > descriptors without resetting your device and having the OS restart it. Oliver wrote: > The firmware uploader may need to do a reset

system awareness of endpoints

2016-03-13 Thread bruce m beach
Hello Greg >> I believe I can change the Device descriptors in firmware, upload the new >> firmware and reboot the stick but wouldn't the usb subsystem have the old >> device descriptor from the previous hotplug/system boot? > Nope, the kernel reads the descriptor from the device when it is

system awareness of endpoints

2016-03-12 Thread bruce m beach
Hello All I'm new to libusb (and programming usb) so am not clear on a host of things but am making lots of progress. In an email to libusb I wrote: I'm trying to get a debug endpoint on the open firmware for an atheros usb wifi stick (ar9271) with a fusb200 controller. All the bits and