Webdisconnection will hangup the tty causing the tty_wait_until_sent loop to wake-up, but if the subsequent call to chars_in_buffer reports an error instead of zero, the loop will go back … WebNov 13, 2015 · While transmitting RS232 data I use tcdrain () to wait for the data to be sent before putting more data into the txbuffer. Code: write (hPort, txBytes, txBytes.count); …
Re: [patch 1/3] net: serialize hrtimer callback in sched_cbq - IU
WebMay 4, 2024 · On (modern) Linux systems the receive and transmit system buffers are usually cleared when the serial port/terminal is opened. That may not be the case with Windows. flush () " Flush of file like objects. In this case, wait until all data is written." In POSIX termios jargon, this function is known as tcdrain (). WebMay 6, 2024 · And when we load the SDMA firmware (v3.3 or v3.5) the kernel crashes in +80% of the cases (it hangs, or a kernel panic). We use SDMA for SAI (audio), but also when disabling SAI to use sdma it crashes. Just like you it crashes after loading the driver, so not related to the latest kernel 5.2 fix 3f93a4f297961c12bb17aa16cb3a4d1291823cae. daughter of martin luther king jr
Line Control (The GNU C Library)
WebJun 18, 2009 · I just have the problem, that the tcdrain () function has not timeout function. The case: I sendout chars out of the rs232 interface with the write () function, via CTS/RTS Handshake, but I do not have connect a cable. In this … WebAug 23, 2024 · tcdrain blocks until the output buffer has been emptied, however if there is no remote device to drain the the buffer it never drains so hangs forever.... I assume … WebThe tcdrain() function shall block until all output written to The fildesargument is an open file descriptor associated with a terminal. a background process group on a fildesassociated with its controlling terminal, shall cause the process group to be sent a SIGTTOU signal. If the calling thread is blocking SIGTTOU daughter of martin luther king