ADS1293: SPI read/write issue in Linux kernel

Part Number: ADS1293

Hi,

First of all, I know that there is no official Linux kernel driver for ADS1293, so I'm developing a one.

I'm stuck at understanding how to read for ADS1293 and how to fill in the read buffer,

In the datasheet it says that any access is 16-bits long, I'm confused when I need to read only.

For the moment, I'm filling 1 byte buffer with the register to read and then change the first bit with 1 for the read operation, like this:

static int ads1293_read_reg8(struct spi_device *spi, int reg)
{
	int val;
	reg = reg | 0x80;
	val = spi_w8r8(spi, reg);
	return val;
}