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[67.149.105.175]) by smtp.gmail.com with ESMTPSA id z187sm7647412qkb.129.2021.05.15.17.33.32 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sat, 15 May 2021 17:33:32 -0700 (PDT) From: Programmingkid Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.40.0.2.32\)) Subject: Re: Mac OS real USB device support issue Date: Sat, 15 May 2021 20:33:31 -0400 References: <967C172F-B708-40A2-862E-9948F0844133@gmail.com> <725920c9-c990-d35a-4958-4df0c45c62@eik.bme.hu> <0429B873-DD42-4769-BCDF-25A7720D9C44@gmail.com> <8827217c-8fee-7845-045-16ff9622d90@eik.bme.hu> To: BALATON Zoltan , QEMU devel list , Howard Spoelstra , Gerd Hoffmann In-Reply-To: <8827217c-8fee-7845-045-16ff9622d90@eik.bme.hu> Message-Id: <833CA480-8C78-4029-A999-505698ACB297@gmail.com> X-Mailer: Apple Mail (2.3654.40.0.2.32) Received-SPF: pass client-ip=2607:f8b0:4864:20::730; envelope-from=programmingkidx@gmail.com; helo=mail-qk1-x730.google.com 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" I just wanted to give you guys an update on this issue. The libusb = people have fixed the issue with USB device driver detaching on Mac OS. = Here is where the code for the fix is located: = https://github.com/libusb/libusb/pull/911/commits. I was able to build the library and connect it to QEMU on Mac OS 11.1. = As I write this email I am listening to mp3 files on my Mac OS 10.4 VM = that is using a real USB sound card. It isn't perfect sounding but = definitely a leap forward from where we were a month ago.=20 To download each commit in patch form, just append ".patch" to the = patch's URL.=20 Apply the patches one by one using "patch -p1 < patch.txt". Then open the Xcode project file and build the libusb target. To locate the file I had to use this command in the terminal: cd = ~/Library/Developer/Xcode/DerivedData Then find out the path of the old libusb being used in QEMU: otool -L = | grep "libusb"=20 Then to have QEMU use the new library file, use this command: install_name_tool -change Please let me know if you need any help with building your own version = of libusb.=