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Wed, 2 Sep 2020 11:31:24 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 1A7D4113C418; Wed, 2 Sep 2020 13:31:23 +0200 (CEST) From: Markus Armbruster To: Michael Nazzareno Trimarchi Subject: Re: usb-wacom-tablet failing to register References: Date: Wed, 02 Sep 2020 13:31:23 +0200 In-Reply-To: (Michael Nazzareno Trimarchi's message of "Sat, 8 Aug 2020 18:06:16 +0200") Message-ID: <87h7sgjtys.fsf@dusky.pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=armbru@redhat.com X-Mimecast-Spam-Score: 0.002 X-Mimecast-Originator: redhat.com Content-Type: text/plain Received-SPF: pass client-ip=207.211.31.81; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/02 02:33:32 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-devel@nongnu.org, Gerd Hoffmann Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Michael Nazzareno Trimarchi writes: > Hi Markus > > I have seen that you are a committer there so what I have seen that I know precious little about USB, and nothing about this particular device. I'm cc'ing our USB maintainer Gerd. > This request is not implement > switch (request) { > case InterfaceRequest | USB_REQ_GET_DESCRIPTOR: > > When linux probe it fail here > > ret = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber, >> HID_DT_REPORT, rdesc, rsize); > > I think that I miss something in documentation > > Running 5.8.0-rc3 and qemu 4.2.0 > > Michael > > On Sat, Aug 8, 2020 at 4:59 PM Michael Nazzareno Trimarchi > wrote: >> >> Hi >> >> What I have seen is that the parse fail to execute >> hid ll_driver parse fai for >> >> ret = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber, >> HID_DT_REPORT, rdesc, rsize); >> >> Now this is not implemented in hw/dev-wacom.c . What am I missing? >> >> #!/bin/sh >> IMAGE_DIR="${0%/*}/" >> >> if [ "${1}" = "serial-only" ]; then >> EXTRA_ARGS='-nographic' >> else >> EXTRA_ARGS='-serial stdio' >> fi >> >> export PATH="/home/michael/work/amarula/buildroot/output/host/bin:${PATH}" >> exec qemu-system-i386 -M pc -kernel ${IMAGE_DIR}/bzImage -usb >> -device usb-wacom-tablet -drive >> file=${IMAGE_DIR}/rootfs.ext2,if=virtio,format=raw -append "rootwait >> root=/dev/vda console=tty1 console=ttyS0" -net nic,model=virtio -net >> use >> r ${EXTRA_ARGS} >> >> This is how I run it >> >> Michael >> >> On Sat, Jul 11, 2020 at 4:38 PM Michael Nazzareno Trimarchi >> wrote: >> > >> > Hi all >> > >> > On my 4.17.0-rc1 linux kernel i386 running on qemu, I can't register >> > the wacom driver emulation >> > QEMU emulator version 4.2.0 (Debian 1:4.2-3ubuntu6.3) >> > Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers >> > >> > [ 0.395368] ata2.00: configured for MWDMA2 >> > [ 0.397049] scsi 1:0:0:0: CD-ROM QEMU QEMU DVD-ROM >> > 2.5+ PQ: 0 ANSI: 5 >> > [ 0.584135] usb 2-1: new full-speed USB device number 2 using xhci_hcd >> > [ 0.734449] usb 2-1: New USB device found, idVendor=056a, >> > idProduct=0000, bcdDevice=42.10 >> > [ 0.734461] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 >> > [ 0.734466] usb 2-1: Product: Wacom PenPartner >> > [ 0.734470] usb 2-1: Manufacturer: QEMU >> > [ 0.734474] usb 2-1: SerialNumber: 1-0000:00:04.0-1 >> > [ 0.737347] usbhid 2-1:1.0: can't add hid device: -32 >> > [ 0.737366] usbhid: probe of 2-1:1.0 failed with error -32 >> > >> > I get back an error. Any suggestions? >> > >> > Michael >> >> >> >> -- >> Michael Nazzareno Trimarchi >> Amarula Solutions BV >> COO Co-Founder >> Cruquiuskade 47 Amsterdam 1018 AM NL >> T. +31(0)851119172 >> M. +39(0)3479132170 >> [`as] https://www.amarulasolutions.com