Hi, I've already attached logs and a snapshot from the device manager on the windows side into the bug report. Hope this helps. Regards, Ibrahim ERTURK On Wed, Jun 9, 2021 at 5:12 AM Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > > On Tue, Jun 08, 2021 at 03:56:11PM -0500, Larry Finger wrote: > > On 6/8/21 1:53 PM, Alan Stern wrote: > > > I don't get it. If this is a PCIe device, why should it appear > > > on a USB bus? Wouldn't you expect it to show up as a PCI device > > > on a PCI bus instead? > > > > > > > I do not know the internal details, but Realtek packages a PCIe wifi > > device and a bluetooth USB device in the same package. Intel does the > > same thing on my Wireless 7260. > > > > My lsusb shows: > > Bus 003 Device 002: ID 8087:8000 Intel Corp. Integrated Rate Matching Hub > > Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > > Bus 001 Device 002: ID 8087:8008 Intel Corp. Integrated Rate Matching Hub > > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > > Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub > > Bus 002 Device 004: ID 8087:07dc Intel Corp. Bluetooth wireless interface > > Bus 002 Device 003: ID 0bda:c822 Realtek Semiconductor Corp. Bluetooth Radio > > Bus 002 Device 002: ID 04f2:b3b2 Chicony Electronics Co., Ltd TOSHIBA > > Web Camera - FHD > > Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > > > > I have no devices plugged into a USB port. > > Okay, now I get the picture. The Intel PCIe card contains an > EHCI USB host controller plus a couple of on-board USB Bluetooth > devices and an on-board USB webcam, in addition to the PCIe wifi > device. > > Which means you're looking at the problem all wrong. It isn't a > USB problem at all; it's a PCI problem. Namely, why doesn't the > system detect the USB host controller on the PCIe board? > > I have added the PCI maintainer and mailing list to the CC. > Maybe they can help shed some light. > > The original Suse Bugzilla report: > > https://bugzilla.suse.com/show_bug.cgi?id=1186889 > > shows the Realtek board at PCI address 0000:03:00.0, but there's > no mention of a USB host controller on that board. The only host > controller on the system is the one at address 0000:00:14.0, > which is xHCI and is directly on the motherboard. > > Furthermore, there's no trace of any mention of an EHCI USB host > controller in the system log. So maybe the board has to be told > somehow to turn that controller on before it will show up, and > the rtw_8822ce driver isn't giving the appropriate order. > > Can the bug reporter get information from Windows about the USB > host controllers, and in particular, the one on the RTL8822 > board? > > Alan Stern
