[En-Nut-Discussion] Uart SPI initialization

[Robert Mutke]

Hi,

While going through SPI initializtion I found a strange thing:

In dev/uarts.c:73:
NUTDEVICE devUarts[] = {
    {
     0,                         /*!< Pointer to next device. */
     {'u', 'a', 'r', 't', 's', '0', 0, 0, 0},   /*!< Unique device name. */
     IFTYP_STREAM,              /*!< Type of device. */
     1,                         /*!< Base address. */
     0,                         /*!< First interrupt number. */
     0,                         /*!< Interface control block. */
     &dcb_uart1,                /*!< Driver control block. */
     UartSpiInit,               /*!< Driver initialization routine. */
     UartSpiIOCtl               /*!< Driver specific control function. */
     },
...

I register a device in this way:
    NUTDEVICE* devSpi = &devUarts[0];
    if (NutRegisterDevice(devSpi, 0, 0))
	{
		puts( "NutRegisterDevice(): failed" );
		for(;;);
	}

So NutRegisterDevice() takes dev_base from devUarts[0], which is 1.
After that it calls initialization routine, which is UartSpiInit in
this case. This one checks dev_base if it is zero. If it is not, it
returns -1, which prohibits registering the device.

What should I do? Change the dev_base in devUarts to 0 or remove
checking in UartSpiInit? What do you think?

Cheers,
Robert