Re: [PATCH 2/3] rust: miscdevice: Implemented `read` and `write`

[gregkh@xxxxxxxxxxxxxxxxxxx]

On Thu, Sep 18, 2025 at 04:59:01PM +0200, gregkh@xxxxxxxxxxxxxxxxxxx wrote:
> On Thu, Sep 18, 2025 at 02:45:36PM +0000, ManeraKai wrote:
> > Added the general declaration in `FileOperations`. And implemented the
> > safe wrapping for misc.
> 
> While read/write is "traditional", perhaps instead you should just
> export read_iter and write_iter as that is the proper way forward for
> drivers to be using.

Wait, maybe not.  The _iter stuff is "hard" for misc devices, and I
don't think that any of the current ones use that, so nevermind, a
simple read/write should be all that we need here.

What type of real misc driver do you want to write in rust that you need
a read/write callback and not just an ioctl one?

thanks,

greg k-h