Hi,
I am wondering, whether my Notebook supports WiFi direct / P2P or not.
$ lspci -k | grep -iA3 network
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8822CE 802.11ac PCIe Wireless Network Adapter
Subsystem: Lenovo Device c123
Kernel driver in use: rtw_8822ce
Kernel modules: rtw88_8822ce
And iw list says:
$ iw list
[..]
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* monitor
* mesh point
[..]
meaning, that it is not supported. There while the controller seems in principle able to deal with p2p:
Supported TX frame types:
[..]
* P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-device: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
Supported RX frame types:
[..]
* P2P-client: 0x40 0xd0
* P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* P2P-device: 0x40 0xd0
Since p2p actually fails …
$ sudo wpa_cli [..]
> p2p_find
FAIL
… I suppose, p2p is not supported. But since the laptop-computer is 1.5 years old, I would assume, p2p should be included by default.
So, I have two questions:
- Is it anywhere documented, whether or not my wifi (RTL8822CE) controller supports p2p?
- If I look for a wifi usb-controller stick, where do I have to look for p2p support? Usually it seems not to be documentated in the specs.
Merry christmas 
& kind regards,
Peer