on my Raspberry Pi 4, Model B 2 GB, is a 802.11b/g/n/ac wireless chip, but i can't see it:
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lspci -nnk
00:00.0 PCI bridge [0604]: Broadcom Limited Device [14e4:2711] (rev 10)
01:00.0 USB controller [0c031]: VIA Technologies, Inc. VL805 USB 3.0 Host Controller [1106:3483] (rev 01)
Subsystem: VIA Technologies, Inc. VL805 USB 3.0 Host Controller [1106:3483]
Kernel driver in use: xhci_hcd
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ip link
1: lo: <loopback> mtu 65536 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
1: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT grup default qlen 1000 link/ether dc:a6:32:ca:10:0e brd ff:ff:ff:ff:ff:ff
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uname -a
Linux DietPi 5.4.72-v8+ #1356 SMP PREEMPT Thu Oct 22 13:58:52 BST 2020 aarch64 GNU/Linux