ACK/Cmnt: [SRU][F/raspi][G/raspi][H/raspi][PATCH 0/1] No iwilwifi driver in Linux 5.4.0-1034-raspi (LP: #1925209)

Tim Gardner tim.gardner at canonical.com
Thu Apr 22 13:02:42 UTC 2021


Acked-by: Tim Gardner <tim.gardner at canonical.com>

Enabling modules isn't always risk free. One should note that PCI 
devices are hot-plugged. If there is an early bug in the module init, or 
it mis-handles some incoming packet, odd crashes could ensue. I have 
seen this with staging drivers.

rtg

On 4/22/21 6:30 AM, Juerg Haefliger wrote:
> [Impact]
> 
> The Raspberry Pi CM4 exposes a PCIe bus and the AX200 Wifi plugin card should therefore be supported.
> 
> [Test Plan]
> 
> $ modinfo iwlwifi
> modinfo: ERROR: Module iwlwifi not found.
> 
> [Where Problems Could Occur]
> 
> It's a new module which might need firmware. If that blob is not available, users might ee dmesg errors. And obviously if the module is buggy all hell could break loose.
> 
> [Original description]
> 
> Hello,
> 
> I have installed Ubuntu Core 20 edge built on 19.04.2021(https://cdimage.ubuntu.com/ubuntu-core/20/edge/) in Raspberry Pi CM4.
> 
> Operating System: Ubuntu Core 20
> Kernel: Linux 5.4.0-1034-raspi
> Architecture: arm64
> 
> I have inserted a Intel AX200 Wifi Adapter in PCIe slot in Raspberry Pi CM4. The device is recognised
> 
> $pciutils-snap.lspci
> 00:00.0 PCI bridge: Broadcom Inc. and subsidiaries Device 2711 (rev 20)
> 01:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)
> 
> But the iwlwifi driver is not available.
> 
> $lsmod | grep iwl
> $
> 
> iwlwifi is the driver needed for intel wireless chips(https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi).
> 
> Is there a possibility to enable the iwlwifi driver?
> 
> Thanks
> Hema
> 
> Juerg Haefliger (1):
>    UBUNTU: [Config] raspi: Set IWLWIFI=m
> 
>   debian.raspi/config/config.common.ubuntu | 10 +++++++++-
>   1 file changed, 9 insertions(+), 1 deletion(-)
> 

-- 
-----------
Tim Gardner
Canonical, Inc



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