From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: Paz Offer <poffer@nvidia.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: Re: How do I enumerate devices connected to i2c busses on running QEMU?
Date: Wed, 6 Mar 2024 17:27:05 +0100 [thread overview]
Message-ID: <fc7756ff-e810-47a6-af10-93e5edaab899@linaro.org> (raw)
In-Reply-To: <MW4PR12MB699791410D2714B76FE8E863A0212@MW4PR12MB6997.namprd12.prod.outlook.com>
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
prev parent reply other threads:[~2024-03-06 16:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-06 11:44 How do I enumerate devices connected to i2c busses on running QEMU? Paz Offer
2024-03-06 16:27 ` Philippe Mathieu-Daudé [this message]
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