4/7/2024 0 Comments Minicom usb![]() More specifically, the mapping is on the minor number, so minor number 65 (/dev/ttyS1) is COM1, 66 (/dev/ttyS2) is COM2, and so forth. In WSL, the lxcore driver maps COM ports to Linux devices by the COM port number so /dev/ttyS is tied to COM. Alternate mknod mappings can be created at runtime if needed. By default init will populate this mapping using the mknod system call. On Linux, serial devices can have arbitrary names but are typically character devices with a major number of 4 and a minor number from 64 to 256 represented by /dev/ttyS0 through /dev/ttyS191. On Windows, COM ports are named COM1 through COM256. This blog post will describe how to use this feature and the work that was involved in exposing this functionality within WSL. In Windows Insider build # 16176 WSL now allows access to serial devices (COM ports). Posted on behalf of Stephen Hufnagel Summary For background information you may want to read the architectural overview, introduction to pico processes, WSL system calls, and WSL file system blog posts. This is part of a series of blog posts on the Windows Subsystem for Linux (WSL).
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