have you check your kernel config? there are some options should be selected when building the kernel. in Device driver—>SPI support: SUN7i spi controller sun7i spi normal dam mode select user mode spi device driver support the above items should be selected before you build your kernel. and that is for A20’s environment ,i am not sure about A10’s, i think they are similar.
> 在 2015年3月26日，上午12:47，Michal Suchanek <[email protected]> 写道： > > On 25 March 2015 at 15:37, huziqin <[email protected]> wrote: >> hello there, >> Have you check this page: >> http://linux-sunxi.org/SPIdev >> there is a step by step sample of using the SPI. I used to went it through >> and it works on my cubieboard2 (A20 chipset). >> I hope it would be helpful for you. > > Yes, I have read exactly that page. > > It has no information for mainline and spidev does not work for me > (create any device) on 3.4. > >> >> 在 2015年3月25日，上午12:11，Emilio López <[email protected]> 写道： >> > >> >> "spidev" is not a supported compatible >> >> http://lxr.free-electrons.com/source/drivers/spi/spidev.c#L692 >> >> Have a second look at my example from earlier. You'll probably want to add >> your own compatible to the driver (unless you want to use a dh2228fv, that >> is). >> > > Actually, spidev seems to work allright as compatible. > > My card reader does not work when attached to the SPI bus, unfortunately. > > I wonder if I have problem setting the SS because driver for some > other card reader manages to get 0x00 output but I get only 0xFF. > > I guess I will try some other device. > > Thanks > > Michal -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
