On Mon, May 18, 2020 at 07:05:11PM +0200, Maarten Brock wrote:
> On 2020-05-18 18:35, Andy Shevchenko wrote:
> > On Mon, May 18, 2020 at 06:13:16PM +0200, Maarten Brock wrote:
> > > On 2020-05-18 17:22, Lukas Wunner wrote:
> > > > On Mon, May 18, 2020 at 06:12:41PM +0300, Andy Shevchenko wrote:
> >
On 2020-05-18 18:35, Andy Shevchenko wrote:
On Mon, May 18, 2020 at 06:13:16PM +0200, Maarten Brock wrote:
On 2020-05-18 17:22, Lukas Wunner wrote:
> On Mon, May 18, 2020 at 06:12:41PM +0300, Andy Shevchenko wrote:
> > On Sun, May 17, 2020 at 11:56:08PM +0200, Heiko Stuebner wrote:
> > > From: H
On Mon, May 18, 2020 at 06:13:16PM +0200, Maarten Brock wrote:
> On 2020-05-18 17:22, Lukas Wunner wrote:
> > On Mon, May 18, 2020 at 06:12:41PM +0300, Andy Shevchenko wrote:
> > > On Sun, May 17, 2020 at 11:56:08PM +0200, Heiko Stuebner wrote:
> > > > From: Heiko Stuebner
> > > >
> > > > The RE s
On 2020-05-18 17:22, Lukas Wunner wrote:
On Mon, May 18, 2020 at 06:12:41PM +0300, Andy Shevchenko wrote:
On Sun, May 17, 2020 at 11:56:08PM +0200, Heiko Stuebner wrote:
> From: Heiko Stuebner
>
> The RE signal is used to control the duplex mode of transmissions,
> aka receiving data while send
On Mon, May 18, 2020 at 05:22:47PM +0200, Lukas Wunner wrote:
> And for longer cables, users may have to disable it using the
> TIOCSRS485 ioctl.
Sorry, I meant *enable* here. %-/
On Mon, May 18, 2020 at 06:12:41PM +0300, Andy Shevchenko wrote:
> On Sun, May 17, 2020 at 11:56:08PM +0200, Heiko Stuebner wrote:
> > From: Heiko Stuebner
> >
> > The RE signal is used to control the duplex mode of transmissions,
> > aka receiving data while sending in full duplex mode, while st
On Sun, May 17, 2020 at 11:56:08PM +0200, Heiko Stuebner wrote:
> From: Heiko Stuebner
>
> The RE signal is used to control the duplex mode of transmissions,
> aka receiving data while sending in full duplex mode, while stopping
> receiving data in half-duplex mode.
>
> On a number of boards the
On Mon, May 18, 2020 at 10:04:05AM +0200, Heiko Stübner wrote:
> Am Montag, 18. Mai 2020, 06:50:06 CEST schrieb Lukas Wunner:
> > On Sun, May 17, 2020 at 11:56:08PM +0200, Heiko Stuebner wrote:
> > > @@ -1457,6 +1458,7 @@ void serial8250_em485_stop_tx(struct uart_8250_port
> > > *p)
> > >* Ena
Am Montag, 18. Mai 2020, 06:50:06 CEST schrieb Lukas Wunner:
> On Sun, May 17, 2020 at 11:56:08PM +0200, Heiko Stuebner wrote:
> > @@ -1457,6 +1458,7 @@ void serial8250_em485_stop_tx(struct uart_8250_port
> > *p)
> > * Enable previously disabled RX interrupts.
> > */
> > if (!(p->por
On Sun, May 17, 2020 at 11:56:08PM +0200, Heiko Stuebner wrote:
> @@ -1457,6 +1458,7 @@ void serial8250_em485_stop_tx(struct uart_8250_port *p)
>* Enable previously disabled RX interrupts.
>*/
> if (!(p->port.rs485.flags & SER_RS485_RX_DURING_TX)) {
> + gpiod_set_v
From: Heiko Stuebner
The RE signal is used to control the duplex mode of transmissions,
aka receiving data while sending in full duplex mode, while stopping
receiving data in half-duplex mode.
On a number of boards the !RE signal is tied to ground so reception
is always enabled except if the UAR
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