我正在尝试使用 ubuntu 配置 wifi p2p 连接,但遇到了一些问题。我特别遵循了此指导和这个一
几乎一切看起来都很好,但是当我运行命令时:
sudo ./wpa_supplicant -i wlan0 -c /etc/p2p.conf -Dnl80211 -ddt
我收到此错误:
1442591346.069280: nl80211: Set wlan0 operstate 0->0 (DORMANT)
1442591346.069563: netlink: Operstate: ifindex=4 linkmode=-1 (no change), operstate=5 (IF_OPER_DORMANT)
1442591346.069901: nl80211: Create interface iftype 10 (P2P_DEVICE)
1442591347.591372: Failed to create interface p2p-dev-wlan0: -5 (Input/output error)
1442591347.592233: nl80211: Failed to create a P2P Device interface p2p-dev-wlan0
1442591347.593031: P2P: Failed to create P2P Device interface
1442591347.593754: P2P: Failed to enable P2P Device interface
1442591347.594689: EAPOL: disable timer tick
1442591347.595501: random: Got 20/20 bytes from /dev/random
之后,如果我打开另一个 shell 然后输入
sudo ./wpa_cli -i wlan0
会话似乎正确启动,但是当我尝试使用 p2p 命令时,它们失败了:
wpa_cli v2.4
Copyright (c) 2004-2015, Jouni Malinen <[email protected]> and contributors
This software may be distributed under the terms of the BSD license.
See README for more details.
Interactive mode
> p2p_find
FAIL
有人能帮我吗?我正在使用带有 Ubuntu 14.04.2 LTS 的 WANDBOARD 四核设备。我不明白为什么无法创建 P2P 接口。谢谢。
答案1
你的 wifi 设备是否支持 p2p-client/p2p-go 接口?你可以使用“iw list”检查接口
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* monitor
* P2P-client
* P2P-GO
* P2P-device