LINUX 16550A DRIVER

If you intend to use a software modem also called Winmodem under Linux, forget it. By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Most people will say Y or M here, so that they can use serial mice, modems and similar devices connecting to the standard serial ports. Note that the Cyclades and Stallion multi serial port drivers do not need this driver built in for them to work. Filedes is not a tty. Linux detects my COM9 as ttyS4 in dmesg.

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Automatically generated in year with gen-web-lkddb. If you intend to use a software modem also called Winmodem under Linux, forget it.

Getting serial ports to work on Linux

Linux detects my COM9 as ttyS4 in dmesg. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. An attempt to do a setserial autoconfig fails with: This selects whether you want to include the driver for the standard serial ports.

You’ve run into the limits of the “Linux” part of the problem, so I suggest you re-post this question on electronics. To compile this driver as a module, choose M here: The data is retrived from: Do not compile this driver as a module if you are using non-standard serial ports, since the configuration information lniux be lost when the driver is unloaded.

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The standard answer is Y. Nope, setserial doesn’t work. Sign up using Facebook. Mr Stinky 8. SE to chase the low-level parts. These modems are crippled and require proprietary drivers which are only available under Windows. Possibly there’s a problem in my driver, but it all looks fairly straight forward how I am supposed to add a basic compatible device. It indicates there is a control bit in a Southbridge register that does “something” for COM9.

If you linjx a mouseman serial mouse which is not recognized by the X window system, try running linxu first.

Linux source code: drivers/tty/serial/c (v) – Bootlin

The datasheet for the CPU doesn’t say much. Note that the Cyclades multi serial port driver does linuxx need this driver built in for it to work. I wrote a PCI utility that wrote to this bit, but it didn’t seem to enable the COM port or change anything when I did the io port probing.

The setserial 8 program should be able to configure it for you.

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Post as a guest Name. Home Questions Tags Users Unanswered. So I wrote an io port probing utility to directly read from io port 0x, and I could not detect any A registers in the 0x to 0x region.

I’ve since got the UART part working. The kernel still does the same autoconfig and scanning as setserial does.

setserial(8) – Linux man page

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It can also mean the UART has a buggy implementation, but that’s probably not what’s going on here. Note that the Cyclades and Stallion multi serial port drivers do 166550a need this driver built in for them to work.