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分享求教大神，iTOP-4412刷Ubuntu系统后WiFi模块启动不了
如题，wifi模块是mt6620，集成在板子上面的。
安装教程修改itop-set文件之后，再修改wpa_supplicant.conf文件。重启开发板。
但是，wifi模块附近的led并没有亮，在Ubuntu系统里面无线网络也是灰色的。
查看启动时的系统串口日志发现：
应该怎么办？
安装教程修改itop-set文件之后，再修改wpa_supplicant.conf文件。重启开发板。
但是，wifi模块附近的led并没有亮，在Ubuntu系统里面无线网络也是灰色的。
查看启动时的系统串口日志发现：
[ 6.943863] VFS: Mounted root (ext4 filesystem) on device 179:2.
[ 6.949862] Freeing init memory: 220K
[ 6.954851] Failed to execute /linuxrc. Attempting defaults...
mountall: Event failed
[ 8.525460] CPU1: shutdown
[ 14.133707] CPU2: shutdown
[ 19.261819] init: Failed to create pty - disabling logging for job
[ 19.285670] init: Failed to create pty - disabling logging for job
[ 19.293451] mtk_stp_GPS_chrdev driver(major 191) installed.
[ 19.302123] init: Failed to create pty - disabling logging for job
* Starting Userspace bootsplash[ OK ]
[ 19.415120] init: Failed to create pty - disabling logging for job
[ 19.491937] init: Failed to create pty - disabling logging for job
[ 19.506428] init: Failed to create pty - disabling logging for job
[ 21.280545] [WMT-C][E]wmt_core_stp_init(717):no hif info!
[ 21.284471] drivers/mtk_wcn_combo/common/core/wmt_core.c, 718, (0)
[ 21.291479] [WMT-C][E]opfunc_pwr_on(1058):wmt_core_stp_init fail (-1)
[ 21.298271] drivers/mtk_wcn_combo/common/core/wmt_core.c, 1059, (0)
[ 21.304530] [WMT-C][E]wmt_core_ctrl(559):failed: id(5), type(1), value(0) iR)
[ 21.312304] drivers/mtk_wcn_combo/common/core/wmt_core.c, 560, (0)
[ 21.318314] [WMT-C][E]wmt_core_ctrl(559):failed: id(5), type(0), value(0) iR)
[ 21.326024] drivers/mtk_wcn_combo/common/core/wmt_core.c, 560, (0)
[ 21.391308] init: Failed to create pty - disabling logging for job
[ 21.400263] init: Failed to create pty - disabling logging for job
[ 23.330172] [WMT-CTRL][E]wmt_ctrl_ul_cmd(540):wait signal timeout
[ 23.335010] [WMT-C][E]wmt_core_ctrl(559):failed: id(3), type(0), value(0) iR)
[ 23.344260] drivers/mtk_wcn_combo/common/core/wmt_core.c, 560, (0)
[ 23.435632] [WMT-C][E]wmt_core_stp_init(717):no hif info!
[ 23.435667] drivers/mtk_wcn_combo/common/core/wmt_core.c, 718, (0)
[ 23.435707] [WMT-C][E]opfunc_pwr_on(1058):wmt_core_stp_init fail (-1)
[ 23.435743] drivers/mtk_wcn_combo/common/core/wmt_core.c, 1059, (0)
[ 23.435866] [WMT-C][E]wmt_core_ctrl(559):failed: id(5), type(1), value(0) iR)
[ 23.435904] drivers/mtk_wcn_combo/common/core/wmt_core.c, 560, (0)
[ 23.435985] [WMT-C][E]wmt_core_ctrl(559):failed: id(5), type(0), value(0) iR)
[ 23.436023] drivers/mtk_wcn_combo/common/core/wmt_core.c, 560, (0)
[ 23.436156] [WMT-C][E]wmt_core_ctrl(559):failed: id(3), type(0), value(0) iR)
[ 23.436194] drivers/mtk_wcn_combo/common/core/wmt_core.c, 560, (0)
[ 23.585640] [WMT-C][E]wmt_core_stp_init(717):no hif info!
[ 23.585675] drivers/mtk_wcn_combo/common/core/wmt_core.c, 718, (0)
[ 23.585713] [WMT-C][E]opfunc_pwr_on(1058):wmt_core_stp_init fail (-1)
[ 23.585749] drivers/mtk_wcn_combo/common/core/wmt_core.c, 1059, (0)
[ 23.585867] [WMT-C][E]wmt_core_ctrl(559):failed: id(5), type(1), value(0) iR)
[ 23.585906] drivers/mtk_wcn_combo/common/core/wmt_core.c, 560, (0)
[ 23.585986] [WMT-C][E]wmt_core_ctrl(559):failed: id(5), type(0), value(0) iR)
[ 23.586024] drivers/mtk_wcn_combo/common/core/wmt_core.c, 560, (0)
[ 23.586153] [WMT-C][E]wmt_core_ctrl(559):failed: id(3), type(0), value(0) iR)
[ 23.586191] drivers/mtk_wcn_combo/common/core/wmt_core.c, 560, (0)
[ 23.652098] [WMT-C][E]opfunc_func_on(1170):func(3) pwr_on fail(-2)
[ 23.660258] drivers/mtk_wcn_combo/common/core/wmt_core.c, 1171, (0)
[ 140.112600] init: Failed to create pty - disabling logging for job
[ 140.127310] init: Failed to create pty - disabling logging for job
[ 140.143866] init: Failed to create pty - disabling logging for job
[ 140.156505] init: Failed to create pty - disabling logging for job
[ 140.168729] init: Failed to create pty - disabling logging for job
speech-dispatcher disabled; edit /etc/default/speech-dispatche[ 140.188583] inb
r
[ 140.206966] init: Failed to create pty - disabling logging for job
[ 140.232260] init: Failed to create pty - disabling logging for job
saned disabled; edit /etc/default/saned
[ 140.269808] init: Failed to create pty - disabling logging for job
[ 140.284353] init: Failed to create pty - disabling logging for job
[ 140.309545] init: Failed to create pty - disabling logging for job
[ 140.327651] init: Failed to create pty - disabling logging for job
[ 140.345977] init: Failed to create pty - disabling logging for job
Last login: Thu Nov 23 02:21:22 UTC 2017 on tty1
[ 140.398203] init: Failed to create pty - disabling logging for job
[ 140.472072] init: Failed to create pty - disabling logging for job
[ 140.649203] init: Failed to create pty - disabling logging for job
[ 140.693059] init: Failed to create pty - disabling logging for job
Welcome to Linaro 12.04 (GNU/Linux 3.0.15 armv7l)
New release '14.04.5 LTS' available.
Run 'do-release-upgrade' to upgrade to it. 应该怎么办？
...全文
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qq_37809819 2017-12-18
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先看问题，学习一下
Creator_莫言 2017-12-14
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将驱动编译成ko文件，手动加载看有什么问题
jklinux 2017-12-11
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看下是不是进系统后还需要加载相应的驱动模块(.ko文件)???
chenhuan20123 2017-12-07
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重新编译了内核，之后却出现不插sd卡就无限重启，插卡之后就能正常启动，但还是不能启动wifi模块。
求救应该怎么做？
jklinux 2017-11-28
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有可能没有驱动好后，可以进系统后输入命令: ifconfig -a 查看下输出的网络设备里有没有wlan0. 如没有就表示没有驱动好。
jklinux 2017-11-28
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那就是没有驱动好了
chenhuan20123 2017-11-28
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使用iwconfig命令查看时发现：
lo no wireless extensions.
rmnet0 no wireless extensions.
sit0 no wireless extensions.
ip6tnl0 no wireless extensions.
eth0 no wireless extensions. eth0 Link encap:Ethernet HWaddr 00:00:ff:ff:00:00
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) 