Re: How do I enumerate devices connected to i2c busses on running QEMU?

[Philippe Mathieu-Daudé]

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