On Thu, Apr 11, 2024 at 10:52:36PM +0200, Ferry Toth wrote: > Op 11-04-2024 om 18:39 schreef Andy Shevchenko: > > On Thu, Apr 11, 2024 at 04:26:37PM +0200, Hardik Gajjar wrote: > > > On Wed, Apr 10, 2024 at 08:37:42PM +0300, Andy Shevchenko wrote: > > > > On Sun, Apr 07, 2024 at 10:51:51PM +0200, Ferry Toth wrote: > > > > > Op 05-04-2024 om 13:38 schreef Hardik Gajjar: ... > > > > > Exactly. And this didn't happen before the 2 patches. > > > > > > > > > > To be precise: /sys/class/net/usb0 is not removed and it is a link, the link > > > > > target /sys/devices/pci0000:00/0000:00:11.0/dwc3.0.auto/gadget.0/net/usb0 no > > > > > longer exists > > > So, it means that the /sys/class/net/usb0 is present, but the symlink is > > > broken. In that case, the dwc3 driver should recreate the device, and the > > > symlink should become active again > > Yes, on first enabling gadget (when device mode is activated): > > root@yuna:~# ls /sys/devices/pci0000:00/0000:00:11.0/dwc3.0.auto/gadget.0/ > driver net power sound subsystem suspended uevent > > Then switching to host mode: > > root@yuna:~# ls /sys/devices/pci0000:00/0000:00:11.0/dwc3.0.auto/gadget.0/ > ls: cannot access > '/sys/devices/pci0000:00/0000:00:11.0/dwc3.0.auto/gadget.0/': No such file > or directory > > Then back to device mode: > > root@yuna:~# ls /sys/devices/pci0000:00/0000:00:11.0/dwc3.0.auto/gadget.0/ > driver power sound subsystem suspended uevent > > net is missing. But, network functions: > > root@yuna:~# ping 10.42.0.1 > PING 10.42.0.1 (10.42.0.1): 56 data bytes > > Mass storage device is created and removed each time as expected. So, what's the conclusion? Shall we move towards revert of those two changes? > > > I have the dwc3 IP base usb controller, Let me check with this patch and > > > share result here. May be we need some fix in dwc3 > Would have been nice if someone could test on other controller as well. But > another instance of dwc3 is also very welcome. > > It's quite possible, please test on your side. > > We are happy to test any fixes if you come up with. -- With Best Regards, Andy Shevchenko
