Re: Moxa UPort 1150 and RS-422/485… what's the "proper" way to switch modes

On Thu, Jun 29, 2017 at 08:50:32PM +0100, Alan Cox wrote: > So IMHO there are two cases > > 1. The configuration is fixed in the hardware - in which case we should > automatically set it in kernel, or from device tree. Right. > 2. The configuration is soft - in which case you need an ioctl you

Re: Moxa UPort 1150 and RS-422/485… what's the "proper" way to switch modes

So IMHO there are two cases 1. The configuration is fixed in the hardware - in which case we should automatically set it in kernel, or from device tree. 2. The configuration is soft - in which case you need an ioctl you can use on the port to change it - irrespective of whether sysfs also

Re: Moxa UPort 1150 and RS-422/485… what's the "proper" way to switch modes

On Wed, Jun 28, 2017 at 08:07:54AM +1000, Stuart Longland wrote: > This beats the official Moxa solution: their Windows driver wants a > reboot of the entire machine to switch between serial standards. Interesting approach. Johan -- To unsubscribe from this list: send the line "unsubscribe

Re: Moxa UPort 1150 and RS-422/485… what's the "proper" way to switch modes

On Tue, Jun 27, 2017 at 02:08:51PM +0200, Oliver Neukum wrote: > Am Dienstag, den 27.06.2017, 19:43 +1000 schrieb Stuart Longland: > > Maybe a good start would be a "standard" option (referring to the > > physical signalling standard, TTL/RS-232/RS-422/RS-485), that lists the > > available

Re: Moxa UPort 1150 and RS-422/485… what's the "proper" way to switch modes

On Tue, Jun 27, 2017 at 07:43:28PM +1000, Stuart Longland wrote: > On 27/06/17 19:04, Johan Hovold wrote: > >> What's the "proper" way to configure such ports for RS-422 and/or 4-wire > >> RS-485? Is there an example driver in the tree that I can use as a > >> guide to porting Moxa's mode-switch

Re: Moxa UPort 1150 and RS-422/485… what's the "proper" way to switch modes

Oliver Neukum writes: > Am Mittwoch, den 28.06.2017, 14:01 +0200 schrieb Greg KH: >> On Wed, Jun 28, 2017 at 11:19:09AM +0200, Oliver Neukum wrote: >> > >> > 1) module option >> >> No, just no, sorry. > > I am sorry, but this is just ideological an answer. This is rather >

Re: Moxa UPort 1150 and RS-422/485… what's the "proper" way to switch modes

Am Mittwoch, den 28.06.2017, 14:01 +0200 schrieb Greg KH: > On Wed, Jun 28, 2017 at 11:19:09AM +0200, Oliver Neukum wrote: > > > > Am Mittwoch, den 28.06.2017, 08:07 +1000 schrieb Stuart Longland: > > > > Hi, > > > > > > > > > > > > > > > > > > > and to select 4-wire ("full duplex") RS-485,

Re: Moxa UPort 1150 and RS-422/485… what's the "proper" way to switch modes

On Wed, Jun 28, 2017 at 11:19:09AM +0200, Oliver Neukum wrote: > Am Mittwoch, den 28.06.2017, 08:07 +1000 schrieb Stuart Longland: > > Hi, > > > >> and to select 4-wire ("full duplex") RS-485, one does: > > >> # echo rs485fd > /sys/class/tty/ttyUSB0/standard > > > This looks like something that

Re: Moxa UPort 1150 and RS-422/485… what's the "proper" way to switch modes

Am Mittwoch, den 28.06.2017, 08:07 +1000 schrieb Stuart Longland: Hi, > >> and to select 4-wire ("full duplex") RS-485, one does: > >> # echo rs485fd > /sys/class/tty/ttyUSB0/standard > > This looks like something that people will put into udev. > > So the switch will be done via udev, but the

Re: Moxa UPort 1150 and RS-422/485… what's the "proper" way to switch modes

On 27/06/17 22:08, Oliver Neukum wrote: > Am Dienstag, den 27.06.2017, 19:43 +1000 schrieb Stuart Longland: >> Maybe a good start would be a "standard" option (referring to the >> physical signalling standard, TTL/RS-232/RS-422/RS-485), that lists the >> available standards when read and shows the

Re: Moxa UPort 1150 and RS-422/485… what's the "proper" way to switch modes

Am Dienstag, den 27.06.2017, 19:43 +1000 schrieb Stuart Longland: > Maybe a good start would be a "standard" option (referring to the > physical signalling standard, TTL/RS-232/RS-422/RS-485), that lists the > available standards when read and shows the "selected" standard in > brackets (like the

Re: Moxa UPort 1150 and RS-422/485… what's the "proper" way to switch modes

On 27/06/17 19:04, Johan Hovold wrote: >> What's the "proper" way to configure such ports for RS-422 and/or 4-wire >> RS-485? Is there an example driver in the tree that I can use as a >> guide to porting Moxa's mode-switch code over to the ti_usb_3410_5052 >> driver? > > I'm afraid not. We have

Re: Moxa UPort 1150 and RS-422/485… what's the "proper" way to switch modes

[ +CC: Alan and linux-usb ] On Fri, Jun 23, 2017 at 09:44:31AM +1000, Stuart Longland wrote: > Hi all, > > A silly question: I have a Moxa UPort 1150 USB serial interface that I > am trying to coax into either RS-422 or 4-wire RS-485 mode. Internally, > this is a TI USB 3410 device, and works