På Mon, Feb 23, 2009 at 12:46:38AM -0800 skrev Matt Staniszewski:
> From: Matt Staniszewski <matt.staniszewski@xxxxxxxxx>
> To: microblaze-uclinux@xxxxxxxxxxxxxx
> Date: Mon, 23 Feb 2009 00:46:38 -0800
> Subject: Re: [microblaze-uclinux] Adding SPI Driver causes Kernel to Hang
>
> I found the functions listed in xspi_ioctl.h. I tried to write a sample
> script similar to a gpio test script my friend wrote. However, there's no
> /dev/spi to open a file descriptor for. I have the xilinx_spi device
> recognized in the boot up, how do I map it to /dev/spi? Thanks.
Perhaps this code snips might help you:
static struct spi_driver spi_driver = {
.driver = {
.name = "xilinx_spi",
.owner = THIS_MODULE,
},
.probe = spi_probe,
.remove = __devexit_p(spi_remove),
};
/* ... */
ret = spi_register_driver(&spi_driver);
/* ... */
static int __devinit
spi_probe (struct spi_device *spi_device)
{
spi->mode = SPI_MODE_0 | SPI_LOOP;
return 0;
}
static int __devexit
spi_remove (struct spi_device *spi_device)
{
return 0;
}
Nicolas
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