spidev on davinci

[Denis Obrezkov]

Hello, I am trying to use spidev to send messages via spi on OMAP-L137 EVM
board.
I have an spidev entry in /dev, but when I try to send data, I have the
following message:

spidev spi1.0: SPI transfer failed: -22
spi_master spi1: failed to transfer one message from queue

Debugging using printk, I found out that a probe function is called, and
after this transfer_one_message is called. In transfer_one_message
master->transfer_one() function is called and returned with the error.
But I can't find the implementation of transfer_one function for
davinci_spi.

So, I have two questions:
What implementation is used by default when transfer_one implementation
isn't provided?
Should I write my own implementation of transfer_one function&



-- 
Regards, Denis Obrezkov
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