On 09/16/2014 12:55 PM, Sebastian Andrzej Siewior wrote: > On 09/15/2014 07:01 PM, Sebastian Andrzej Siewior wrote: >> On 09/11/2014 04:35 PM, Peter Hurley wrote: >>> I do need to find out if omap hardware sets UART_MSR_DCTS when auto CTS >>> is on. Would you mind running the debug patch below with HW flow control on? >> >> I didn't forget about this. However I told minicom to use hardware flow >> control (and I see the driver set the HW bit) but I haven't seen that >> uart_handle_cts_change() has been invoked at all. I'm going to check >> two other boards and report then. > > No, I don't get into this at all function. Ok, good to know. Thanks for testing that. > So I connected my am335x-evm > with beagle board xm because both of them have an old fashion UART > connector (instead those uart-to-usb). Both configured with HW-Flow and > I haven't seen the function invoked but I saw "port->icount.overrun" > being incremented. This shouldn't happen. So I am a little puzzled here… Yeah, that's weird. Do you have a break-out box to confirm that RTS/CTS are being driven? Regards, Peter Hurley -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html