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Tue, 3 Dec 2019 10:53:03 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 3995111AB5; Tue, 3 Dec 2019 11:53:02 +0100 (CET) Date: Tue, 3 Dec 2019 11:53:02 +0100 From: Gerd Hoffmann To: Yuri Benditovich Subject: Re: [PATCH 2/2] usb-redir: remove 'remote wakeup' flag from configuration descriptor Message-ID: <20191203105302.wm7tcy3f4ysuesrf@sirius.home.kraxel.org> References: <20191202123430.7125-1-yuri.benditovich@daynix.com> <20191202123430.7125-3-yuri.benditovich@daynix.com> MIME-Version: 1.0 In-Reply-To: <20191202123430.7125-3-yuri.benditovich@daynix.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-MC-Unique: TA1GREflMvujz85JFqPEmg-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.120 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: yan@daynix.com, ehabkost@redhat.com, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi, > + /* > + * If this is GET_DESCRIPTOR request for configuration descripto= r, > + * remove 'remote wakeup' flag from it to prevent idle power dow= n > + * in Windows guest > + */ > + if (dev->suppress_remote_wake && > + control_packet->requesttype =3D=3D USB_DIR_IN && > + control_packet->request =3D=3D USB_REQ_GET_DESCRIPTOR && > + control_packet->value =3D=3D (USB_DT_CONFIG << 8) && > + control_packet->index =3D=3D 0 && > + /* bmAttributes field of config descriptor */ > + len > 7 && (dev->dev.data_buf[7] & USB_CFG_ATT_WAKEUP)) { > + DPRINTF("Removed remote wake %04X:%04X\n", > + dev->device_info.vendor_id, > + dev->device_info.product_id); > + dev->dev.data_buf[7] &=3D ~USB_CFG_ATT_WAKEUP; > + } Hmm, not much opportunity to factor out stuff to share with usb-host. Ok then. I think checkpatch has complains for this too, otherwise it looks fine. cheers, Gerd