From: Ping-Ke Shih <pkshih@realtek.com>
To: Bitterblue Smith <rtl8821cerfe2@gmail.com>,
"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Cc: Jes Sorensen <Jes.Sorensen@gmail.com>,
"art1310@proton.me" <art1310@proton.me>
Subject: RE: [PATCH rtw-next] wifi: rtl8xxxu: Detect the maximum supported channel width
Date: Mon, 27 Apr 2026 02:50:35 +0000 [thread overview]
Message-ID: <df316654c31c4c6684e88dadbf07be1f@realtek.com> (raw)
In-Reply-To: <092f18cd-f3a6-4e3b-b0de-1cb23615e86b@gmail.com>
Bitterblue Smith <rtl8821cerfe2@gmail.com> wrote:
> Some devices malfunction when connected to a network with 40 MHz channel
> width, because they don't support that.
>
> RTL8188FU, RTL8192FU, and RTL8710BU (RTL8188GU) have a way to signal
> this (and some other capabilities) to the driver. Get this information
> from the hardware and advertise 40 MHz support only when the hardware
> can handle it. We assume the other chips can always handle it.
>
> RTL8710BU needs a different way to retrieve this information, which will
> be implemented some other time.
>
> Fixes: dbf9b7bb0edf ("wifi: rtl8xxxu: Enable 40 MHz width by default")
> Cc: stable@vger.kernel.org
> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=221394
> Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
prev parent reply other threads:[~2026-04-27 2:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-25 19:38 [PATCH rtw-next] wifi: rtl8xxxu: Detect the maximum supported channel width Bitterblue Smith
2026-04-27 2:50 ` Ping-Ke Shih [this message]
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