Note RE: Meraki MR24 and ath10k compat

[hurr...@gmail.com]

Hi there! My name is Martin K; I am a volunteer at a hackerspace in Burlington, VT. Apologies if this is not the appropriate location but I wanted to share:

 

The MR24s will work with different WLAN cards, in particular, for 11ac operation, the WLE900VX works fine, just requiring opkg installations of `kmod-ath10k-ct` and the respective `ath10k-firmware-qca988x-ct`, along with an /etc/modules.d/ath10k file containing "ath10k_pci irq_mode=1" that tells ath10k_pci to load under irq_mode 1. It's great hardware as-is under OpenWrt, but I jumped out of my seat when I got it to work because I bought a few of them specifically with mind to use with a QCA9880v2-based module (one of the only ath10k's that can properly do IBSS at the time I started searching).

Don't install the `kmod` before you add that file and firmware! ath10k-ct will crash if you do.

[Russell Senior]

Cool! Do you have photos of the WLE900VX installed?

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[hurr...@gmail.com]

Sure thing!

On Friday, November 29, 2019 at 10:25:40 PM UTC-5, Russell Senior wrote:

Cool! Do you have photos of the WLE900VX installed?

On Fri, Nov 29, 2019 at 7:23 PM <hurr...@gmail.com> wrote:

Hi there! My name is Martin K; I am a volunteer at a hackerspace in Burlington, VT. Apologies if this is not the appropriate location but I wanted to share:

 

The MR24s will work with different WLAN cards, in particular, for 11ac operation, the WLE900VX works fine, just requiring opkg installations of `kmod-ath10k-ct` and the respective `ath10k-firmware-qca988x-ct`, along with an /etc/modules.d/ath10k file containing "ath10k_pci irq_mode=1" that tells ath10k_pci to load under irq_mode 1. It's great hardware as-is under OpenWrt, but I jumped out of my seat when I got it to work because I bought a few of them specifically with mind to use with a QCA9880v2-based module (one of the only ath10k's that can properly do IBSS at the time I started searching).

Don't install the `kmod` before you add that file and firmware! ath10k-ct will crash if you do.

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[zel...@gmail.com]

For anyone having issues with WLE900VX showing up in dmesg or lspci output, mask or cut trace to pin 20 of the card (RF kill pin).

[hurricos]

Yes indeed. We discovered that when booting X61 Thinkpads with modified BIOS. 

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[Russell Senior]

Hmm. I had one popped open to try to do this conversion this evening,
and I seem to have killed the MR24. I'm not getting anything on the
console anymore (I did when I first plugged it in, did a reboot into
recovery, but it hung while unpacking the initramfs image from flash
and never spoke coherently again, and applying power gives me only a
momentary blink from the LEDs. Any clues what might have happened?

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[Martin Kennedy]

No clue! Were you by chance using the bleeding-edge initramfs?

There were some recent big changes / standardizations to the dts, as
you may recall (you helped debug them!), and something may have gotten
fried by one of the recent changes. I have a pair of MR24's at work
which I'd be willing to sacrifice to reproduce your results if it's an
issue with something in the DTS.

It could have just been it giving out, of course ... if you're able to
provide a high-detail image of the motherboard I may be able to help
point out the burnt spot :(

Martin