Return-path: Received: from mail-wm0-f52.google.com ([74.125.82.52]:38317 "EHLO mail-wm0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751958AbdHIUfa (ORCPT ); Wed, 9 Aug 2017 16:35:30 -0400 Received: by mail-wm0-f52.google.com with SMTP id f15so5915871wmg.1 for ; Wed, 09 Aug 2017 13:35:30 -0700 (PDT) Subject: Re: Problem with the wifi To: Larry Finger , Paolo Bettini Cc: linux-wireless References: <00515b4a-5949-3746-db71-6b2b8a82dd1a@gmx.com> From: Arend van Spriel Message-ID: <593b1d88-25fa-5d99-b74e-8e0c535243e1@broadcom.com> (sfid-20170809_223539_144649_0CEACEE0) Date: Wed, 9 Aug 2017 22:35:26 +0200 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 09-08-17 18:40, Larry Finger wrote: > On 08/08/2017 04:10 AM, Arend van Spriel wrote: >> + linux-wireless >> + Larry >> >> please keep linux-wireless in this thread. >> >> On 08-08-17 08:21, Paolo Bettini wrote: >>> Arend van Spriel ha scritto: >>>> + linux-wireless On 07-08-17 21:38, Paolo Bettini wrote: >>>>> Hi , i am Paolo and i installed Debian stretch on my ezbook2 . One >>>>> problem is the wifi , the card a SDIO device , seems to be 02d0:a9a6 >>>>> linux id or Broadcom AP6212 for windows....i installed deb package >>>>> firmware-brcm80211 and nvram sdio txt in /lib/firmware/brcm, reloaded >>>>> bcrmfmac module but nothing the card seems invisible or dead i don't >>>>> know if is a problem of firmware or my system cannot detect the sdio >>>>> card ...do you know something about this problematic ? >>>> As always a kernel log could help or output from dmesg command. Also >>>> can you run following commands: $ ls /sys/bus/sdio/devices $ cat >>>> /sys/bus/sdio/devices/*/modalias Regards, Arend >>> paolo@paolo:~$ ls /sys/bus/sdio/devices >>> mmc1:0001:1 >>> paolo@paolo:~$ >>> >>> >>> paolo@paolo:~$ cat /sys/bus/sdio/devices/*/modalias sdio:c07v024CdB723 >>> paolo@paolo:~$ sorry for previous mail ....ls was from another pc....:-[ >>> it seems the system see only the card where the system is installed >> >> Hi Paolo, >> >> Interesting. Now if Google search is correct the vendor id for this >> device indicates this is a Realtek (v024C) WLAN (c07) device. So what >> makes you say its linux id is 02d0:a9a6? >> >> In upstream linux I do not see any SDIO device drivers in realtek >> folder. Maybe Larry can provide clue/hint if a driver for this device is >> publicly available somewhere. > > Paolo, > > The only Realtek SDIO device in common distribution is the RTL8723BS, > which has been packaged with some Intel processors, and may now be part > of other SBC's. This driver has been in staging since V4.12. It handles > SDIO Vendor code 0x024c with device codes 0x0523, 0x0623, 0x0626, and > 0xb723. If your device is one of these, then you only need to build a > kernel with this driver enabled. He has device id 0xb723: paolo@paolo:~$ cat /sys/bus/sdio/devices/*/modalias sdio:c07v024CdB723 So that driver should at least try to probe his device. Regards, Arend