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Hi, currently, I am a bit confused about the semaphore
between rtdev and stack_mgr: how it is used to synchronize these two? According to my understanding thus far, the real time
task “do_stacktask” is blocked at decrementing the semaphore, while
there is no packet pending in the rx_queue, which means the
semaphore is zero. So when some packets are received, the rtdev should
increment the semaphore somewhere, but I can not found the piece of
code where the semaphore is incremented. Is my understanding right? Could you
give me some hints? Thx in adv. Regards, Zhang Yuchen MSc Student Control Engineering Group The |
