From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F292FC433F5 for ; Tue, 14 Sep 2021 08:43:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D8D1860EE0 for ; Tue, 14 Sep 2021 08:43:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229791AbhINIoU (ORCPT ); Tue, 14 Sep 2021 04:44:20 -0400 Received: from mail.kernel.org ([198.145.29.99]:54386 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229663AbhINIoT (ORCPT ); Tue, 14 Sep 2021 04:44:19 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 66B2860EE0; Tue, 14 Sep 2021 08:43:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1631608983; bh=wN+AKC/xAiPMCjuqKnyLO8Jfm9COVGI8WRxWTaBUZPQ=; h=Subject:To:From:Date:From; b=N4twGX+lb0jf0w5vG2TX6gohAyMrV4glI2AxelzS8WD9eiyEnHhQfDUTOVwk5Wm01 DoyTjDowi6Lmdzetod+9WfCu0e+Ii0Nm1h0zb93fsmau8ZiiCLEv86Y7ocfvpPTOQa MTt/ym2hD17rCnL4vqOHKDWvq2JSc2JJjkzU2WQA= Subject: patch "usb: gadget: f_uac2: Populate SS descriptors' wBytesPerInterval" added to usb-linus To: jackp@codeaurora.org, gregkh@linuxfoundation.org, stable@vger.kernel.org From: Date: Tue, 14 Sep 2021 10:42:52 +0200 Message-ID: <16316089729931@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org This is a note to let you know that I've just added the patch titled usb: gadget: f_uac2: Populate SS descriptors' wBytesPerInterval to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >From f0e8a206a2a53a919e1709c654cb65d519f7befb Mon Sep 17 00:00:00 2001 From: Jack Pham Date: Thu, 9 Sep 2021 10:48:11 -0700 Subject: usb: gadget: f_uac2: Populate SS descriptors' wBytesPerInterval For Isochronous endpoints, the SS companion descriptor's wBytesPerInterval field is required to reserve bus time in order to transmit the required payload during the service interval. If left at 0, the UAC2 function is unable to transact data on its playback or capture endpoints in SuperSpeed mode. Since f_uac2 currently does not support any bursting this value can be exactly equal to the calculated wMaxPacketSize. Tested with Windows 10 as a host. Fixes: f8cb3d556be3 ("usb: f_uac2: adds support for SS and SSP") Cc: stable Signed-off-by: Jack Pham Link: https://lore.kernel.org/r/20210909174811.12534-3-jackp@codeaurora.org Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/function/f_uac2.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c index d89c1ebb07f4..be864560bfea 100644 --- a/drivers/usb/gadget/function/f_uac2.c +++ b/drivers/usb/gadget/function/f_uac2.c @@ -1178,6 +1178,9 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn) agdev->out_ep_maxpsize = max_t(u16, agdev->out_ep_maxpsize, le16_to_cpu(ss_epout_desc.wMaxPacketSize)); + ss_epin_desc_comp.wBytesPerInterval = ss_epin_desc.wMaxPacketSize; + ss_epout_desc_comp.wBytesPerInterval = ss_epout_desc.wMaxPacketSize; + // HS and SS endpoint addresses are copied from autoconfigured FS descriptors hs_ep_int_desc.bEndpointAddress = fs_ep_int_desc.bEndpointAddress; hs_epout_desc.bEndpointAddress = fs_epout_desc.bEndpointAddress; -- 2.33.0