[ECOS] Help needed for integration of my own serial driver ???

[Jonathan Larmour]

Cusson, Pascal wrote:
> Hi everyone,
>    I am trying to incorporate my serial driver into eCos. As stated in the documents, I created all the following functions. However, for some 
reason, my serial_handle does not get initialised. If single through the 
lookup function, my device is detected and read but the handle does no get 
initialized at all. Is initialization of the handle my responsability or 
eCos' resonsability ?

eCos's, but it only does it on success.

> serial_io_handle_t serial_handle;
> 
> Here is my calling function:
> 
> error=cyg_io_lookup("/dev/ttyS0", &serial_handle);
> 
> Here is my loopup function:
> 
> static Cyg_ErrNo scc1_lookup(struct cyg_devtab_entry **tab, struct cyg_devtab_entry *sub_tab, const char * name)
> {
>     serial_channel *chan = (serial_channel *)(*tab)->priv;
>     //(chan->callbacks->init_scc1)(chan);  // Really only required for interrupt driven devices
>     return 1;
> }

You must return 0 (pedantically, ENOERR) for success, not 1.

And you should check the return code from cyg_io_lookup() too.

Jifl
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