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=-4.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 84810C433E6 for ; Wed, 10 Mar 2021 10:14:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3BE3B64FE7 for ; Wed, 10 Mar 2021 10:14:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231899AbhCJKNz (ORCPT ); Wed, 10 Mar 2021 05:13:55 -0500 Received: from mail.kernel.org ([198.145.29.99]:39394 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229657AbhCJKNq (ORCPT ); Wed, 10 Mar 2021 05:13:46 -0500 Received: by mail.kernel.org (Postfix) with ESMTPS id 493C564FE4 for ; Wed, 10 Mar 2021 10:13:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1615371226; bh=3MkERiO8jtnZmb65WoyVtYGOVCg/VUnz5HCc7XFB63M=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Gpl+333CHPmH5pc5u1kvLfMi2q4RNTFPQNefvB4LNkFQ8wuc3sX2dQV/tUqNu96NG qx+2hyH4ZdApEgGUv+9ByrqNtd36Vw954R9bCYYelSk0JLlaTptrOunmn+b8eqRNNx kr5HsgUtAo8mCTNQFpzP/LV4kV0jLuNlAzW9++yZxJdi9m40TdAL7eO1WnjkrWShva 4abgOW5p7OUVZ3AlMliYLTtATYNJ7r5+ttmJ9OrKDINJHB4mqx6lUoKD4WjPNxl9Tn 6haCQEnXsyfoNKslyfwgax2TUddyocUWkBuSn3VKBp9r5CZB6zSLpRX9b4suXk9pvD 2LhEx9vfQW/9A== From: bugzilla-daemon@bugzilla.kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 212045] dwc2 gadget mode read call blocks Date: Wed, 10 Mar 2021 10:13:46 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: USB X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: tomasz@grobelny.net X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D212045 --- Comment #7 from Tomasz Grobelny (tomasz@grobelny.net) --- What do you mean by "function driver"? The userspace code that actually ope= ns the ep0/ep1/ep2 files exposed by functionfs? It works correctly for other hosts. I don't have any more data to argue it is dwc2, but still seems like an iss= ue in kernel USB subsystem. Another question that might help debugging it: is it the host that should o= pen the ep2 endpoint? In other words: is it the host that is directly responsib= le for lack of any mention of ep2 in dmesg output after the device was reinitialized? --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=