Re: [PATCH v16 4/4] bus: mhi: Add userspace client interface driver

From: Greg KH
Date: Thu Dec 10 2020 - 03:55:11 EST


On Wed, Dec 09, 2020 at 11:21:25PM -0800, Hemant Kumar wrote:
> This MHI client driver allows userspace clients to transfer
> raw data between MHI device and host using standard file operations.
> Driver instantiates UCI device object which is associated to device
> file node. UCI device object instantiates UCI channel object when device
> file node is opened. UCI channel object is used to manage MHI channels
> by calling MHI core APIs for read and write operations. MHI channels
> are started as part of device open(). MHI channels remain in start
> state until last release() is called on UCI device file node. Device
> file node is created with format
>
> /dev/<mhi_device_name>
>
> Currently it supports QMI channel.
>
> Signed-off-by: Hemant Kumar <hemantk@xxxxxxxxxxxxxx>
> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> Reviewed-by: Jeffrey Hugo <jhugo@xxxxxxxxxxxxxx>
> Tested-by: Loic Poulain <loic.poulain@xxxxxxxxxx>
> ---

Can you provide a pointer to the open-source userspace program that will
be talking to this new kernel driver please? That should be part of the
changelog here.

thanks,

greg k-h