Set serial port to blocking while sending image #12
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The serial port needs to be in non-blocking mode for normal operation to use the select() loop. However, if the image being sent is especially big (e.g. a large operating system), then the write() will eventually need to block. So clear the non-blocking flag while sending the image, and then set it once the image is sent.
brenns10
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The serial port needs to be in non-blocking mode for normal operation to
use the select() loop. However, if the image being sent is especially
big (e.g. a large operating system), then the write() will eventually
need to block. So clear the non-blocking flag while sending the image,
and then set it once the image is sent.