From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751487AbaJDSmz (ORCPT ); Sat, 4 Oct 2014 14:42:55 -0400 Received: from mout.web.de ([212.227.17.11]:54550 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750928AbaJDSmy (ORCPT ); Sat, 4 Oct 2014 14:42:54 -0400 Message-ID: <54303FA4.3080106@web.de> Date: Sat, 04 Oct 2014 20:42:44 +0200 From: Jan Kiszka User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 MIME-Version: 1.0 To: linux-usb , Linux Kernel Mailing List Subject: xhci_hcd: WARN Event TRB for slot 6 ep 4 with no TDs queued? Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="5J1TnRtptdOsrHOlgb5KKwQhdlwQJR6FD" X-Provags-ID: V03:K0:Tsx2bfleA9b0rdVzo6MbeFR1gbjiBXqXoBkzG5Pv4bgVXvnHp3e /BwM7UVJPPu5wjBy8OuuB2AocgytpOIcPGPWCzdm1Fh1650Xowqr2Oz4YKwMHW6dlm4SxOj uJEYesRi0uX81AJb6dhB57BcFbTEdMFKUY2rRamwF3AugZHJwdzzUBWrq1fjAsb1OjuvNdH p4DVdF6+BeiOrtSYto3dw== X-UI-Out-Filterresults: notjunk:1; Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --5J1TnRtptdOsrHOlgb5KKwQhdlwQJR6FD Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi, I'm getting xhci_hcd 0000:00:14.0: WARN Event TRB for slot 6 ep 4 with no TDs queued?= on each interaction with my built-in CCID smartcard reader (Celsius H730). The device is working fine otherwise, just the log fills up. What's the reason? What can be done about it? Find lsusb -v of the reader below. Jan --- Bus 001 Device 006: ID 0b97:7772 O2 Micro, Inc. OZ776 CCID Smartcard Read= er Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0b97 O2 Micro, Inc. idProduct 0x7772 OZ776 CCID Smartcard Reader bcdDevice 1.10 iManufacturer 1 O2 iProduct 2 O2Micro CCID SC Reader iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 93 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 11 Chip/SmartCard bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0003 1x 3 bytes bInterval 255 ChipCard Interface Descriptor: bLength 54 bDescriptorType 33 bcdCCID 1.00 nMaxSlotIndex 0 bVoltageSupport 7 5.0V 3.0V 1.8V dwProtocols 3 T=3D0 T=3D1 dwDefaultClock 4000 dwMaxiumumClock 4000 bNumClockSupported 0 dwDataRate 9600 bps dwMaxDataRate 307200 bps bNumDataRatesSupp. 0 dwMaxIFSD 254 dwSyncProtocols 00000000 dwMechanical 00000000 dwFeatures 00000030 Auto clock change Auto baud rate change dwMaxCCIDMsgLen 271 bClassGetResponse 00 bClassEnvelope 00 wlcdLayout none bPINSupport 0 bMaxCCIDBusySlots 1 Device Status: 0x0001 Self Powered --5J1TnRtptdOsrHOlgb5KKwQhdlwQJR6FD Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlQwP6sACgkQitSsb3rl5xTJRwCcDSpVWZ1v8qUv0QFUHOiWkVSr 1v8AoL1xzZ6Q4+8fULmyMyWMZd6fTeth =b4fd -----END PGP SIGNATURE----- --5J1TnRtptdOsrHOlgb5KKwQhdlwQJR6FD--