From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Subject: Re: Huawei K3715 UMTS stick and alsa Date: Tue, 28 Jul 2009 09:36:30 +0200 Message-ID: <4A6EAA7E.4090207@ladisch.de> References: <20090726224300.GA26953@titan.makhutov-it.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from out1.smtp.messagingengine.com (out1.smtp.messagingengine.com [66.111.4.25]) by alsa0.perex.cz (Postfix) with ESMTP id AAC68245BA for ; Tue, 28 Jul 2009 09:36:15 +0200 (CEST) In-Reply-To: <20090726224300.GA26953@titan.makhutov-it.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Artem Makhutov Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Artem Makhutov wrote: > i am wondering if it is possible to write a quirk in usbquirks.h for a Huawei > K3715 UMTS stick to make the audio interfaces available in linux. What kind of audio does this UMTS stick have? > This two interfaces are used for audio (I have sniffed in Windows): > > bEndpointAddress 0x83 EP 3 IN > bEndpointAddress 0x02 EP 2 OUT The lsusb output shows that these are bulk endpoints. The snd-usb-audio driver is designed for isochronous endpoints; a simple quirk would not suffice. > The payload of this interfaces is 320 bytes. How many bytes per second? Best regards, Clemens