Advance notification on WLAN IC / FMAC driver hangup?

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WaSu_1697556
Level 3
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Hi,

A question on a supported feature.

Could FMAC driver notify the host system when something is about to go wrong with WLAN IC or FMAC driver so that the host system can take the countermeasures?

Best,

Wataru Sugimoto

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1 Solution
Zhengbao_Zhang
Moderator
Moderator
Moderator
250 sign-ins First comment on KBA 10 questions asked

hello:

    I didn't find very accurate notify named to host side.  but you can enable the debug prints in fwsignal.c  when meeting issues.

then to see if the logs can figure out where the problem happened.

View solution in original post

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4 Replies
Zhengbao_Zhang
Moderator
Moderator
Moderator
250 sign-ins First comment on KBA 10 questions asked

hello:

    I didn't find very accurate notify named to host side.  but you can enable the debug prints in fwsignal.c  when meeting issues.

then to see if the logs can figure out where the problem happened.

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Hi,

OK, I understood.  Than you for your answer.

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Excuse me for an additional question.

Rebooting the entire host system being the last resort, what procedures should be taken to recover device/driver from malfunction?  Rmmod and then insmod the related kernel modules again?

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yes, if your module is not built-in, you need to insmod the module again with a right sequence .

like below:

modprobe cfg80211

sleep 1

insmod ./drivers/brcmutil.ko

sleep 1

insmod ./drivers/brcmfmac.ko