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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 B670CC2BA15 for ; Sat, 4 Apr 2020 18:47:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9180E206F8 for ; Sat, 4 Apr 2020 18:47:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726315AbgDDSrf (ORCPT ); Sat, 4 Apr 2020 14:47:35 -0400 Received: from jabberwock.ucw.cz ([46.255.230.98]:38826 "EHLO jabberwock.ucw.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726207AbgDDSrf (ORCPT ); Sat, 4 Apr 2020 14:47:35 -0400 Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id 7115C1C3C15; Sat, 4 Apr 2020 20:47:33 +0200 (CEST) Date: Sat, 4 Apr 2020 20:47:32 +0200 From: Pavel Machek To: kernel list , hverkuil@xs4all.nl, linux-media@vger.kernel.org Cc: linux@rainbow-software.org, kilgota@auburn.edu, moinejf@free.fr Subject: gspca webcam: need to plug it 5 times before it works Message-ID: <20200404184732.GA17534@duo.ucw.cz> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ibTvN161/egqYuK8" Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --ibTvN161/egqYuK8 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! =2E.but if I'm patient enough, it eventually starts working... somehow. Incoming data seems to go in reliably. Outgoing commands (such as change gain) don't seem to be unreliable. Any idea how to debug / what could be wrong? Thanks, Pavel [36790.733135] usb 2-1.1: USB disconnect, device number 30 [39686.814093] usb 2-1.1: new high-speed USB device number 33 using ehci-pci [39686.853138] usb 2-1.1: New USB device found, idVendor=3D2770, idProduct= =3D930c, bcdDevice=3D 1.00 [39686.853162] usb 2-1.1: New USB device strings: Mfr=3D1, Product=3D2, Ser= ialNumber=3D0 [39686.853178] usb 2-1.1: Product: USB 2.0 PC camera=20 [39686.853193] usb 2-1.1: Manufacturer: SQ Tech CO., LTD. [39686.859210] gspca_main: sq930x-2.14.0 probing 2770:930c [39688.769984] gspca_sq930x: Unknown sensor [39688.770037] sq930x: probe of 2-1.1:1.0 failed with error -22 [39748.021772] usb 2-1.1: USB disconnect, device number 33 [39754.901755] usb 2-1.1: new high-speed USB device number 34 using ehci-pci [39754.940668] usb 2-1.1: New USB device found, idVendor=3D2770, idProduct= =3D930c, bcdDevice=3D 1.00 [39754.940688] usb 2-1.1: New USB device strings: Mfr=3D1, Product=3D2, Ser= ialNumber=3D0 [39754.940700] usb 2-1.1: Product: USB 2.0 PC camera=20 [39754.940710] usb 2-1.1: Manufacturer: SQ Tech CO., LTD. [39754.944401] gspca_main: sq930x-2.14.0 probing 2770:930c [39756.845672] gspca_sq930x: Unknown sensor [39756.845750] sq930x: probe of 2-1.1:1.0 failed with error -22 [39759.797800] usb 2-1.1: USB disconnect, device number 34 [39763.349750] usb 2-1.1: new high-speed USB device number 35 using ehci-pci [39763.389838] usb 2-1.1: New USB device found, idVendor=3D2770, idProduct= =3D930c, bcdDevice=3D 1.00 [39763.389859] usb 2-1.1: New USB device strings: Mfr=3D1, Product=3D2, Ser= ialNumber=3D0 [39763.389871] usb 2-1.1: Product: USB 2.0 PC camera=20 [39763.389882] usb 2-1.1: Manufacturer: SQ Tech CO., LTD. [39763.391369] gspca_main: sq930x-2.14.0 probing 2770:930c [39765.297703] gspca_sq930x: Unknown sensor [39765.297787] sq930x: probe of 2-1.1:1.0 failed with error -22 [39775.669563] usb 2-1.1: USB disconnect, device number 35 [39779.477651] usb 2-1.1: new high-speed USB device number 36 using ehci-pci [39779.517205] usb 2-1.1: New USB device found, idVendor=3D2770, idProduct= =3D930c, bcdDevice=3D 1.00 [39779.517227] usb 2-1.1: New USB device strings: Mfr=3D1, Product=3D2, Ser= ialNumber=3D0 [39779.517239] usb 2-1.1: Product: USB 2.0 PC camera=20 [39779.517250] usb 2-1.1: Manufacturer: SQ Tech CO., LTD. [39779.519033] gspca_main: sq930x-2.14.0 probing 2770:930c --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --ibTvN161/egqYuK8 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABECAB0WIQRPfPO7r0eAhk010v0w5/Bqldv68gUCXojWRAAKCRAw5/Bqldv6 8knuAJ9SVived2HfGdraT8vKHgIh3RiOtACgq3je1WDkSUk2wWjhg9/rirKWrl8= =/iKo -----END PGP SIGNATURE----- --ibTvN161/egqYuK8--