m...@msys.ch (Marc Balmer) writes: >I found similar code in usb/ucom.c. It makes no sense to hardcode a 1 >sec delay in the driver. If you open/close a device frequently, it >totally slows down your application.
That's exactly what it is supposed to do, even when waiting in close is bad and waiting in open would be better. If your application _knows_ that the device doesn't support DTR, then it can tell the driver to not send the hangup signal by clearing the control flag HUPCL.
