2022-09-24 00:21:21

by James

[permalink] [raw]
Subject: what MediaTek chipset do I have?

I bought a MediaTek PCI card on Amazon that is supposed to be a 7921k chip.
I don't have a 6GHz router and the seller says if I did then it will
work in 6GHz.
The Windows driver is for an AMD RZ608 Wi-Fi 6E 80MHz but the properties
there don't say 6GHz.
The seller says I can't see 6GHz there unless I have a 6GHz router.
I don't believe that  but you guys know better.
I bought it for Linux. :-)
The only reason I mention Windows is because that is the seller's language.

Here is Linux info:
5.15.0-48-generic #54-Ubuntu SMP x86_64

# lspci -k
04:00.0 Network controller: MEDIATEK Corp. Device 0608
        Subsystem: MEDIATEK Corp. Device 0608
        Kernel driver in use: mt7921e
        Kernel modules: mt7921e

Would I say 7921k if it was?


2022-09-24 00:42:32

by Ben Greear

[permalink] [raw]
Subject: Re: what MediaTek chipset do I have?

On 9/23/22 4:18 PM, James wrote:
> I bought a MediaTek PCI card on Amazon that is supposed to be a 7921k chip.
> I don't have a 6GHz router and the seller says if I did then it will work in 6GHz.
> The Windows driver is for an AMD RZ608 Wi-Fi 6E 80MHz but the properties there don't say 6GHz.
> The seller says I can't see 6GHz there unless I have a 6GHz router.
> I don't believe that  but you guys know better.
> I bought it for Linux. :-)
> The only reason I mention Windows is because that is the seller's language.
>
> Here is Linux info:
> 5.15.0-48-generic #54-Ubuntu SMP x86_64
>
> # lspci -k
> 04:00.0 Network controller: MEDIATEK Corp. Device 0608
>         Subsystem: MEDIATEK Corp. Device 0608
>         Kernel driver in use: mt7921e
>         Kernel modules: mt7921e
>
> Would I say 7921k if it was?
>

That looks like 7921k to me, and it will do 6E, though you might need newer kernel and/or regulatory domain
to get it working properly. We've tested it successfully on 6E, on Linux of course.

Thanks,
Ben

--
Ben Greear <[email protected]>
Candela Technologies Inc http://www.candelatech.com

2022-09-24 00:59:59

by James

[permalink] [raw]
Subject: Re: what MediaTek chipset do I have?

A 0608 device is a 7921k?

What device is a 7921e?

On 2022-09-23 20:24, Ben Greear wrote:
> On 9/23/22 4:18 PM, James wrote:
>> I bought a MediaTek PCI card on Amazon that is supposed to be a 7921k
>> chip.
>> I don't have a 6GHz router and the seller says if I did then it will
>> work in 6GHz.
>> The Windows driver is for an AMD RZ608 Wi-Fi 6E 80MHz but the
>> properties there don't say 6GHz.
>> The seller says I can't see 6GHz there unless I have a 6GHz router.
>> I don't believe that  but you guys know better.
>> I bought it for Linux. :-)
>> The only reason I mention Windows is because that is the seller's
>> language.
>>
>> Here is Linux info:
>> 5.15.0-48-generic #54-Ubuntu SMP x86_64
>>
>> # lspci -k
>> 04:00.0 Network controller: MEDIATEK Corp. Device 0608
>>          Subsystem: MEDIATEK Corp. Device 0608
>>          Kernel driver in use: mt7921e
>>          Kernel modules: mt7921e
>>
>> Would I say 7921k if it was?
>>
>
> That looks like 7921k to me, and it will do 6E, though you might need
> newer kernel and/or regulatory domain
> to get it working properly.  We've tested it successfully on 6E, on
> Linux of course.
>
> Thanks,
> Ben
>

2022-09-24 03:55:31

by James

[permalink] [raw]
Subject: Re: what MediaTek chipset do I have?

That's promising. :-)
It doesn't support 160MHz wide channels?
Still way better driver support IMO.

# uname -a
Linux lubuntu 5.19.0-15-generic #15-Ubuntu SMP PREEMPT_DYNAMIC Tue Aug 2
07:35:59 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux


# lspci
04:00.0 Network controller: MEDIATEK Corp. MT7921K (RZ608) Wi-Fi 6E 80MHz


On 2022-09-23 20:53, James wrote:
> A 0608 device is a 7921k?
>
> What device is a 7921e?
>
> On 2022-09-23 20:24, Ben Greear wrote:
>> On 9/23/22 4:18 PM, James wrote:
>>> I bought a MediaTek PCI card on Amazon that is supposed to be a
>>> 7921k chip.
>>> I don't have a 6GHz router and the seller says if I did then it will
>>> work in 6GHz.
>>> The Windows driver is for an AMD RZ608 Wi-Fi 6E 80MHz but the
>>> properties there don't say 6GHz.
>>> The seller says I can't see 6GHz there unless I have a 6GHz router.
>>> I don't believe that  but you guys know better.
>>> I bought it for Linux. :-)
>>> The only reason I mention Windows is because that is the seller's
>>> language.
>>>
>>> Here is Linux info:
>>> 5.15.0-48-generic #54-Ubuntu SMP x86_64
>>>
>>> # lspci -k
>>> 04:00.0 Network controller: MEDIATEK Corp. Device 0608
>>>          Subsystem: MEDIATEK Corp. Device 0608
>>>          Kernel driver in use: mt7921e
>>>          Kernel modules: mt7921e
>>>
>>> Would I say 7921k if it was?
>>>
>>
>> That looks like 7921k to me, and it will do 6E, though you might need
>> newer kernel and/or regulatory domain
>> to get it working properly.  We've tested it successfully on 6E, on
>> Linux of course.
>>
>> Thanks,
>> Ben
>>