Return-path: Received: from mail-wi0-f169.google.com ([209.85.212.169]:56810 "EHLO mail-wi0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755084AbbA2WAV (ORCPT ); Thu, 29 Jan 2015 17:00:21 -0500 Received: by mail-wi0-f169.google.com with SMTP id h11so16457893wiw.0 for ; Thu, 29 Jan 2015 14:00:20 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <1422566048629.36984@mail.polimi.it> References: <1422566048629.36984@mail.polimi.it> From: Krishna Chaitanya Date: Fri, 30 Jan 2015 03:30:00 +0530 Message-ID: (sfid-20150129_230024_794284_915457CA) Subject: Re: "iw": two small questions To: Stefano Cappa Cc: "linux-wireless@vger.kernel.org" Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Fri, Jan 30, 2015 at 2:44 AM, Stefano Cappa wrote: > > Hi, i've two question about iw > > 1) It's possibile that "iw phy phy0 info" said that i can use a particular combination of interfaces in "Valid interface combinations" but on my device i can't use this combination? If yes, the problem is with the driver of this device? > > 2) How iw obtains the information to print "Valid interface combinations"? iw asks this information to the driver/hardware/or something else ? > Yes, it talks to the device driver and gets the combinations which the device supports.