Messages in this thread | | | Subject | Re: Strange problem with USB device | From | Larry Finger <> | Date | Tue, 8 Jun 2021 15:56:11 -0500 |
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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.
Larry
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