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Hi Corona,

Thanks for your suggestion. Here is the log from strace:

_newselect(0, NULL, NULL, NULL, {0, 16576}) = 0 (Timeout)
open("/dev/spidev0.0", O_RDWR) = 6
ioctl(6, 0x80406b00,...

I have to make a linux monitoring daemon that works with a SPI device (/dev/spidev). However, I always failed to init this SPI device. The return error code is 25, which means "inappropriate ioctl...

Hi NH2,

My problem comes from invalid compile option that I mentioned from my previous post. By the way, I tested with your code and get error code 11 returned from pthread_create() function. The...

I am working on embedded linux.
It turns out that the problem is not come from the source code itself but from the compile option. If I add -D_GNU_SOURCE when compiling libFOO then problem will be...

Hi all,

Sorry for the title because I didn't find a proper name for it. My question is about POSIX functions, such as timer_create(), mq_open() and pthread_create().


void test_queue()
{...