Difference between WCN7850 and WCN7851 ?

[Kalle Valo]

Kalle Valo <kvalo at kernel.org> writes:

> GreyXor <greyxor at protonmail.com> writes:
>
>> Hi, I'm interested in acquiring a WiFi 7 card for my laptop, and I
>> came across the Qualcomm QCNCM865, which is Qualcomm's WiFi 7 card.
>> Upon checking Wi-Cat, I noticed that it features a WCN7851 chipset.
>> However, when examining the ath12k/linux source, I couldn't find any
>> mention of the WCN7851; only the WCN7850 was referenced. What
>> implications does this have? Can I still obtain a WCN7851, or would it
>> be advisable to opt for a card with a WCN7850 chipset, given its
>> greater number of updates and references in the kernel?
>
> I don't know what changes WCN7851 has compared to WCN7850 but in general
> these changes are transparently handled by the firmware and the host
> driver just sees it as WCN7850. But I hope someone who is familiar with
> WCN7851 can confirm this.

Another thing I want to point out: usually board files are a major
problem so before buying anything I recommend checking that there's a
board file available for ath12k.

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