8250 is the uart type its a serial device
rs485 denotes a differential serial hardware layer
you still need the 8250 driver to talk serial
On 9/14/2015 7:42 AM, Micka wrote:
> Hi,
>
> I'm trying to make rs485 working on the kernel 4.1 :
>
> &uart1 {
> pinctrl-names = "default";
> pinctrl-0 = <&uart1_pins>;
> status = "okay";
> rts-gpio = <&gpio0 27 GPIO_ACTIVE_HIGH>;
> rs485-rts-active-high;
> rs485-rts-delay = <1 1>;
> linux,rs485-enabled-at-boot-time;
> };
>
> but in the boot log I have :
>
> [ 2.961866] 48022000.serial: ttyS1 at MMIO 0x48022000 (irq = 155,
> base_baud = 3000000) is a *8250*
>
> does it mean that it's the driver 8250 that handle this uart ?
>
> If it's the case, that not good, because only the driver omap handle
> rs485.
>
> When I'm trying to configure the RS485 port, I have the errno = 25
> = Not a typewriter
>
>
> Micka,
> --
> For more options, visit http://beagleboard.org/discuss
> ---
> You received this message because you are subscribed to the Google
> Groups "BeagleBoard" group.
> To unsubscribe from this group and stop receiving emails from it, send
> an email to [email protected]
> <mailto:[email protected]>.
> For more options, visit https://groups.google.com/d/optout.
--
For more options, visit http://beagleboard.org/discuss
---
You received this message because you are subscribed to the Google Groups
"BeagleBoard" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
