On Thursday, December 23, 2021 9:07:56 AM EST Tixy wrote: > On Thu, 2021-12-23 at 13:22 +0000, Curt wrote: > > On 2021-12-22, Tixy <t...@yxit.co.uk> wrote: > > > On Wed, 2021-12-22 at 04:36 -0500, gene heskett wrote: > > > [...] > > > > > > > What utility could adjust the baud and endianess of this tty_ACM0? > > > > > > I can't see how that is relevant, this is your printer's USB connection > > > not some old style asynchronous serial interface like RS232. > > > > Apparently it is though, relevant, to a virtual serial port. > > > > https://www.reddit.com/r/MPSelectMiniOwners/comments/7a9zl8/issues_printin > > g_over_usb_in_ubuntulinux/ > > > > Maybe the OP could try Octoprint or Pronsole. > > I just read that, very strange if setting a baud rate on a 'virtual' > (i.e. not hardware) serial port makes any difference. Unless the act of > sending the baud rate commands over USB to the printer makes its > software (or Linux) go into some different state where subsequent > printing commands work. > > Not knowing really what ACM is I looked for the docs on the internet, > seems ACM is part of the PSTN subclass of USBs Communications Device > Class (CDC) and the docs says: > > With an Abstract Control Model, the USB device understands standard > V.250 (AT) commands. > > Ahh, AT commands, that brings back memories. :-)
Not always fond memories, every modem maker had their own interpretation of the Hayes cmd set. > Still none the wiser of what hardware in the printer you would be > setting the baud rate of though, but as I'm ignorant of the insides of > 3D printers perhaps that's not a surprise. There's an echo here too. Thanks all and Merry Christmas to all. Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene>
