Difference between WCN7850 and WCN7851 ?

Kalle Valo kvalo at kernel.org
Fri Jan 19 04:12:58 PST 2024


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.

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