linux-serial-owner@xxxxxxxxxxxxxxx escribió el 14/01/2008 16:05:03: > > From: linux-serial-owner@xxxxxxxxxxxxxxx [mailto:linux-serial- > > owner@xxxxxxxxxxxxxxx] On Behalf Of JZabalza@xxxxxxxxxxx > > Sent: January 10, 2008 3:27 AM > > To: linux-serial > > Subject: RE: Handling RTS > > > > Thanks for your response. I have a PC, so dmesg said > > > > serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A > > > > How I said, I just handle RTS but from userland. This means a big > > latency between RTS activation and begin out data. I want only reduce this > > latency activating RTS on driver. My question is, is this *protocol* > > implemented actually or I must implement them. > > I'm not an expert on the current 8250 driver, but I believe you will have to > implement your 485 control. > I'm not an expert too, but my question is, if is posible and good idea modify common layer of serial linux driver (serial_core.c) to implement a **walky-talky** protocol with RTS line, this is, activate RTS when there are chars to transmit and deactivate when there is not any character. Thanks. José Luis Zabalza - To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
