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[176.184.43.100]) by smtp.gmail.com with ESMTPSA id q18-20020a170906361200b00a45c2e93438sm414322ejb.143.2024.03.06.08.27.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 06 Mar 2024 08:27:06 -0800 (PST) Message-ID: Date: Wed, 6 Mar 2024 17:27:05 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: How do I enumerate devices connected to i2c busses on running QEMU? Content-Language: en-US To: Paz Offer , "qemu-devel@nongnu.org" References: From: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2a00:1450:4864:20::62c; envelope-from=philmd@linaro.org; helo=mail-ej1-x62c.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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org Hi Paz, On 6/3/24 12:44, Paz Offer wrote: > Hi, > > I want to enumerate all devices connected to i2c busses in running QEMU > hosting Linux. > I understand I need to use 'qom-list' and 'qom-get' in monitor mode, but > I did not find documentation on how to use them for specific information. Try "info qtree": $ qemu-system-i386 -M q35 -S -monitor stdio (qemu) help info qtree info qtree -- show device tree (qemu) info qtree bus: main-system-bus type System dev: q35-pcihost, id "" bus: pcie.0 dev: ICH9-SMB, id "" bus: i2c type i2c-bus dev: smbus-eeprom, id "" address = 87 (0x57) dev: smbus-eeprom, id "" address = 86 (0x56) dev: smbus-eeprom, id "" address = 85 (0x55) dev: smbus-eeprom, id "" address = 84 (0x54) dev: smbus-eeprom, id "" address = 83 (0x53) dev: smbus-eeprom, id "" address = 82 (0x52) dev: smbus-eeprom, id "" address = 81 (0x51) dev: smbus-eeprom, id "" address = 80 (0x50) > > Thanks for any tip, > Paz