Re: [coreboot] USB HUB depth

Hi Patrick and Nico, Everything works now as expected. I wasn't calling usb_poll() properly. Thanks, again, for the quick responses to my exceedingly naive queries. JP On Thu, Mar 9, 2017 at 10:40 AM, Joshua Pincus wrote: > Hi, > > Cool. I'm looking at that code

Re: [coreboot] USB HUB depth

Hi, Cool. I'm looking at that code now. Thanks for your help. JP On Thu, Mar 9, 2017 at 10:29 AM, Patrick Georgi wrote: > 2017-03-09 18:53 GMT+01:00 Joshua Pincus : > > Enable_port() merely provides power to those ports. It doesn't scan > them

Re: [coreboot] USB HUB depth

2017-03-09 18:53 GMT+01:00 Joshua Pincus : > Enable_port() merely provides power to those ports. It doesn't scan them and > then attach them in any way. That happens on the next usb_poll(), which calls ->poll() for every device. In case of hubs, that's

Re: [coreboot] USB HUB depth

Hi Nico, Thanks for your email. Indeed, I'm talking about libpayload's USB stack. There does seem to be a limit as I don't see usbhub.c or generic_hub.c calling any routines beyond enable_port() for the ports beyond the HUB. Enable_port() merely provides power to those ports. It doesn't scan

Re: [coreboot] USB HUB depth

On 09.03.2017 11:18, Joshua Pincus wrote: > Hi, > > I'm new to coreboot and to this group. As this is my first post, let me > thank you folks for developing an impressive and incredibly useful product! Hi Joshua, > I recently fired up the coreboot USB stack on an x86 development board. > The