![]() ![]() Perhaps either 1) the USB devices do buffering differently or 2) don't even use the same protocol atop USB. See also this "Create a USB Virtual COM Port" article, which speaks of either using bridge chips that don't use the Abstract Control Model and require a vendor-specific driver or of using the Abstract Control Model implemented in a microcontroller. However, according to the second answer, at least some serial-to-USB chips have their own proprietary protocol. According to the first answer to this StackOverflow question, and the question itself, USB RS-232 serial ports can use the Abstract Control Model (currently specified in the Universal Serial Bus Communications Class Subclass Specification for PSTN Devices, Revision 1.2). ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |