Messages in this thread | | | Subject | Re: [PATCH v4] i2c: virtio: add a virtio i2c frontend driver | From | Jie Deng <> | Date | Thu, 26 Nov 2020 10:00:18 +0800 |
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On 2020/11/25 17:35, Michael S. Tsirkin wrote:
> On Mon, Oct 12, 2020 at 09:55:55AM +0800, Jie Deng wrote: >> Add an I2C bus driver for virtio para-virtualization. >> >> The controller can be emulated by the backend driver in >> any device model software by following the virtio protocol. >> >> This driver communicates with the backend driver through a >> virtio I2C message structure which includes following parts: >> >> - Header: i2c_msg addr, flags, len. >> - Data buffer: the pointer to the I2C msg data. >> - Status: the processing result from the backend. >> >> People may implement different backend drivers to emulate >> different controllers according to their needs. A backend >> example can be found in the device model of the open source >> project ACRN. For more information, please refer to >> https://projectacrn.org. >> >> The virtio device ID 34 is used for this I2C adpter since IDs >> before 34 have been reserved by other virtio devices. >> >> Co-developed-by: Conghui Chen <conghui.chen@intel.com> >> Signed-off-by: Conghui Chen <conghui.chen@intel.com> >> Signed-off-by: Jie Deng <jie.deng@intel.com> >> Reviewed-by: Shuo Liu <shuo.a.liu@intel.com> >> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> > I assume this will be updated once the specification is acked > by the virtio tc. Holding off on this one for now since > we know there will be host/guest ABI changes.
Yeah. I will update this driver once the specification is acked by the virtio tc.
Thanks.
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