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 with the ti_usb_3410_5052 module. Moxa have a (poorly maintained as usual) driver for these devices, and I see reference to things like RS-485 in the TI driver. Moxa's driver did a kludge where they used `setserial` to control the mode, and used the device "port" number to set that mode. I do not think it wise to try and replicate that same kludge, as I understand that parameter is for configuring the I/O port (e.g. 0x3f8 for /dev/ttyS0 on older IBM-compatibles). Now, *some* versions of `stty` allegedly have an "rs485" option: mine (in coreutils 8.25) does not. I suspect this is 2-wire RS-485, which won't do here, as my RX and TX are on different RS-485 pairs. 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? Regards, -- Stuart Longland (aka Redhatter, VK4MSL) I haven't lost my mind... ...it's backed up on a tape somewhere.
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