Using QSerialPort in the beagle board black with linux kernel 3.8

IvanLai

Hi guys:

I have a weird problem, i have two boards, one is AM335x Stater kit, the other on is BBB. And I write a same program that using QSerialPort(this is a module in Qt library) run on them, but this program run on BBB for a while, the program seems to deadlock, running on the AM335x SK, everything is fine. I don't know what happened, is there a bug in Kernel 3.8(The kernel in AM335x SK is 3.12) for using QSerialPort??

over 10 years ago

0 Ivan Matrakov over 10 years ago

TI__Expert 4475 points

Hi Ivan,

It seems that the problem is in using a kernel 3.8. But the kernel 3.8 we do not support (see the http://beagleboard.org/).

BR
Ivan

0 IvanLai over 10 years ago in reply to Ivan Matrakov

Expert 1250 points

Thank you, I found where the problem is, it seems that In the Kernel 3.8, we can't call QSerialPort::flush() function, otherwise the program would deadlock randomly in this function. Later I remove this function, everything is OK.

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Using QSerialPort in the beagle board black with linux kernel 3.8