[linux-dvb] Re: [PATCHES] Frontend kernel i2c conversion.

[Kenneth Aafløy <lists@kenneth.aafloy.net>]

On Wednesday 21 July 2004 00:34, Ralph Metzler wrote:
[snip]
>  > > Alternative: get the i2c_adapter pointer via sub_device,
>  > > lock it, (in case of linuxtv driver, change i2c adapter name),
>  > > scan it for already present clients, init them,
>  >
>  > How the initialization is done?
>
> Via i2c client command calls. FE_REGISTER and FE_UNREGISTER call the
> dvb_(un)register_frontend functions.

Currently, most, if not all frontends does not do that. They rather register 
the frontend in i2c_attach_adapter.

>  > > somehow add a callback for sub_devices in attach_inform
>  > > for future attachments, do the same for detachments (if one
>  > > allows it at all), unlock i2c_adapter.
>  >
>  > We'll need both attach and detach I think.  "rmmod $frontend" should
>  > work, even if it is only for small driver development turnaround times.
>
> Yes, definitely better for debugging.

As long as the frontend is unused by a *real* user it should be unloadable, 
and that is also fixed in current CVS.

Kenneth