SPI ioctl hangs in imx6ul

[obulesu_veggidi]

Hi,

sometimes spi ioctl in imx6ul hangs indefinitely.
ioctl(sSpiObj.spiFd, SPI_IOC_MESSAGE(1), &sSpiTransfer);

What could be the reason, is the issue belongs to the driver or SPI config in dts file?

[Bio_TICFSL]

Hello,

 The as example:

struct spi_ioc_transfer tr[256];

has to be defined as a global variable.

Regards

[obulesu_veggidi]

Hello Bio_TICFSL,
I made it as a global variable, still the problem exist.
Do I need to change SPI config in dts?

[Bio_TICFSL]

Hi, You said it happens sometimes, this should be a problem of the hardware you have connected.

Regards

[obulesu_veggidi]

Hello Bio_TICFSL,
We have interfaced CLRC663 chip which is a NXP contactless card reader chip.