"Unable to start WiFi" after flash a new customized kernel

[xlshe]

I have costomized and rebuilt the msm kernel from "git://..../kernel/
msm.git" and flash that kernel to my phone ADP2. But when I turn on
the WiFi, it shows"Unable to start WiFi". At first I think maybe
because the WiFi module wasn't been built into the kernel. So I
recostomized the kernel again and add the "Wireless network" module.
But still the same problem occured when turn on WiFi. Does anyone have
some suggestions about that? I will greatly appreciate for your
suggestions. Thank you very much.

[dimi...@android.com]

Your problem is simple - your kernel version doesn't match wlan driver
version that is not part of the kernel.
Resolution is not very simple - you need to compile wlan module from
system/ti/wlan/sta_dk_4_0_4_32 against your new kernel
and upload it to /system/lib/modules

[ecss utdallas]

Exactly as what you pointed. I have solved the problem by recompiling wlan module. Thank you very much!

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[ecss utdallas]

Thank you very much. I have recompiled the wlan and replace the old wlan.ko in mydroid/vendor/htc/sapphire_open. Then rebuild the whole platform with the new kernel and new wlan driver. I flash the phone with the generated boot.img, recovery.img and system.img. Finally, the wi-fi works, but there are no android market on my phone now. I want to get the android market back. So I try to used the new boot.img and the old system.img and recovery.img to flash the phone. At this time, the android market was back but Wi-Fi didn't work again. I try to replace the old wlan.ko in /system/lib/modules with the new wlan.ko as you said. What I did is "adb push new-wlan.ko /system/lib/modules/wlan.ko". The result is "failed to copy 'wlan.ko' to '/system/lib/modules/wlan.ko': Read-only file system". I try to use "adb shell chmod 777 /system/lib/modules/wlan.ko", it reports "Unable to chmod /system/lib/modules/wlan.ko: Read-only file system". How should I do in order to get the android market back on the new platform or replace the wlan.ko on the old platform? I need both Wi-Fi and android market, but the new platform is without android market and the old platform is without Wi-Fi. Thank you for your help.

[Akash Choudhari]

Use

adb remount

to remount the system partition as Read-write

- Akash