Re: is there a struct uart_driver like struct i2c_driver

[Greg KH <greg@kroah.com>]

On Tue, Aug 19, 2014 at 02:25:57PM +0200, Cestonaro Thilo wrote:
> > You might want to step back and describe what you are wanting to do in
> > the first place before wanting to add a new line discipline.
> >
> >
> Ok.
> Imagine you have two chips, one is the cpu and the other one is a device
> which needs to be configured, accessed, talked to via uart.
> The both chips are hardwired via uart.
> Now I want to communicate from the kernel module with the device.

Why within the kernel?  Why not do the communication from userspace?

> let the device be a RTC Device which has a UART interface.

How do you talk to this UART?  Through a "normal" serial chip that the
kernel already has a driver for, or through some other hardware control
interface?

> And I don't want to rewrite all the uart device stuff of the cpu uart
> device.

What do you mean by this?

> As a i2c client doesn't implement master_xfer or whatever the transfer
> methods are called in the i2c controller module.
> It just does a i2c->write(reg, value) and I need something equivalent
> like uart->send(data, len); and uart->handle_recieved =
> my_recieved_data_handler;

Do that in userspace :)

thanks,

greg k-h