On Thu, 19 Jan 2012, Forconi wrote: > I'm working on an RT_PREEMPT patched kernel to test a small C > program that sends 39B of data on the serial line every 50ms. > I'm testing the timing accuracy using a scope on the TX pin of the > serial cable. > When I run the application using /dev/ttyS0 as serial port I see > data starting every 50ms, but when I run the application using a > Prolific PL2303 USB-RS232 adapter on /dev/ttyUSB0 I see data out > every 250ms. > Is this possible or I'm doing something wrong? Why do you expect that USB is in any way deterministic? -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
