How to emulate an i2c device on QEMU x86?

StackOverflow https://stackoverflow.com/questions/18501660

  •  26-06-2022
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Pregunta

I am work on QEMU 1.5/1.6, but haven't seen any docs for adding an device on i2c bus.
Can any one help?
Thanks!

¿Fue útil?

Solución

OK, nobody interested in this issue.
I post my own solution. Cause QEMU does not support I2C bus level data transfer, it has delay when transfer multi-touch data from QEMU to guest Linux.
So we create a shared memory on guest Linux kernel driver, and QEMU transfers the data directly through the shared memory, and it has a good speed.

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