From: Larry Finger <Larry.Finger@lwfinger.net>
To: Bastien Nocera <hadess@hadess.net>, linux-wireless@vger.kernel.org
Subject: Re: Realtek GPIO chipset, for Baytrail?
Date: Tue, 09 Sep 2014 14:27:45 -0500 [thread overview]
Message-ID: <540F54B1.8040409@lwfinger.net> (raw)
In-Reply-To: <1410256608.4077.7.camel@hadess.net>
On 09/09/2014 04:56 AM, Bastien Nocera wrote:
> Hey,
>
> I have a tablet that seems to be using Realtek chips to do wireless
> communications (hopefully, this time I won't be wrong[1]).
>
> The device, under the gpio class in /sys, shows with a modalias of
> "acpi:OBDA8723:" (that's on "O", not "0"). This seems to correspond to a
> Realtek chipset (Larry tells me it matches the PCI ID of 0bda:8723 for
> the RTL8723AE chipset).
>
> It shows up under:
> /sys/devices/platform/80860F0A:00/subsystem/devices
>
> Does anyone have details on how this chipset is actually hooked up? Can
> a portion of the existing RTL8723AE driver code be reused?
Bastien,
From the previous response, it seems unlikely that GPIO is used to control the
device. That is what I expected. Working at that primitive level would be
extremely difficult timing.
I assume that you have checked both 'lspci' and 'lsusb' for any mention of the
wireless device. I am not aware of a similar utility to scan an SDIO bus, but
perhaps someone on this list will know. In addition, a full listing of 'lspci
-nnv' will give a clue regarding what adapters are on the device.
If the device were used with SDIO, then it would be known as the RTL8723AS. I
could not find that chip, but there is an RTL8723BS with a 32-bit driver for
Windows 8.1.
What specific Baytrail tablet do you have?
Larry
next prev parent reply other threads:[~2014-09-09 19:27 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-09 9:56 Realtek GPIO chipset, for Baytrail? Bastien Nocera
2014-09-09 10:35 ` Arend van Spriel
2014-09-09 19:27 ` Larry Finger [this message]
2014-09-09 20:00 ` Bastien Nocera
2014-09-09 20:24 ` Larry Finger
2014-09-09 21:22 ` Bastien Nocera
2014-09-09 21:53 ` Larry Finger
2014-09-09 23:10 ` Marcel Holtmann
2014-09-10 8:46 ` Arend van Spriel
2014-09-10 9:50 ` Bastien Nocera
2014-09-10 10:21 ` Arend van Spriel
2014-09-10 11:25 ` Bastien Nocera
2014-09-10 13:45 ` Larry Finger
2014-09-11 17:34 ` Bastien Nocera
2014-09-10 14:53 ` Marcel Holtmann
2014-09-10 9:48 ` Bastien Nocera
2014-09-11 15:06 ` Marcel Holtmann
2014-09-11 15:41 ` Loic Poulain
2014-09-11 16:01 ` Bastien Nocera
2014-09-11 16:37 ` Marcel Holtmann
2014-09-11 16:42 ` Bastien Nocera
2014-09-11 17:06 ` Marcel Holtmann
2014-09-11 17:07 ` Bastien Nocera
2014-09-11 16:03 ` Bastien Nocera
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