From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from senator.holtmann.net ([87.106.208.187]:41145 "EHLO mail.holtmann.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750978AbaIIXJw convert rfc822-to-8bit (ORCPT ); Tue, 9 Sep 2014 19:09:52 -0400 Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) Subject: Re: Realtek GPIO chipset, for Baytrail? From: Marcel Holtmann In-Reply-To: <7234781D-5B78-404A-B945-D090938777C7@hadess.net> Date: Tue, 9 Sep 2014 16:10:15 -0700 Cc: Larry Finger , "linux-wireless@vger.kernel.org" Message-Id: (sfid-20140910_010955_461216_047AD4AF) References: <1410256608.4077.7.camel@hadess.net> <540F54B1.8040409@lwfinger.net> <1410292835.4077.21.camel@hadess.net> <540F61FE.2050404@lwfinger.net> <7234781D-5B78-404A-B945-D090938777C7@hadess.net> To: Bastien Nocera Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi Bastien, >>>> What specific Baytrail tablet do you have? >>> >>> The Onda v975w. It came with Windows 8.1 32-bit. >>> >>> I guess that the device is probably a PCI one, but the enumeration is >>> done through ACPI instead of "normal" PCI. >> >> In http://www.onda-tablet.com/onda-v975w-quad-core-win-8-tablet-9-7-inch-retina-screen-ram-2gb-wifi-32gb.html, someone is specifically looking for an RTL8723BS driver. > > That's helpful. > >> I will see if my contact at Realtek knows who has worked on drivers for this device, and if it would be possible to use rtl8723be if we were to supply an SDIO frontend. > > I'm not sure why the device doesn't show up in the sysfs tree, but maybe it needs a driver bound to it to show up. I just booted up my Baytrail based Minnowboard Max in ACPI enumeration and then the SDIO host controller is enumerated via ACPI. This is compared to PCI enumeration where the SDIO controller shows up in lspci. So can you try to install sdhci-acpi and see if that starts showing SDIO devices. If the SDIO host controllers loads, then it start SDIO enumeration and you would see the cards. Regards Marcel