| ??? 04/06/07 00:05 Read: times |
#136705 - So much for my idea Responding to: ???'s previous message |
Tsuneo Chinzei said:
3.3.1 Communication Class Interface (usbcdc11.pdf p9)
The Communication Class defines a Communication Class interface consisting of a management element and optionally a notification element. The management element configures and controls the device, and consists of endpoint 0. The notification element transports events to the host, and in most cases, consists of a interrupt endpoint. CDC spec from USB.org http://www.usb.org/developer...bcdc11.pdf I had an idea for multiple COM ports ... simply make a composite device with several (two? three? four?) CDC interfaces. Alas, if the spec says that endpoint 0 is the management endpoint, that blows up my idea. -a |
| Topic | Author | Date |
| Multiple USB Virtual COM Ports | 01/01/70 00:00 | |
| CDC composite device | 01/01/70 00:00 | |
| So much for my idea | 01/01/70 00:00 | |
| Union function descriptor | 01/01/70 00:00 | |
| driver development | 01/01/70 00:00 | |
Composite device, again | 01/01/70 00:00 | |
| Virtual COM port vs Direct port | 01/01/70 00:00 | |
| what about real (non-virtual) | 01/01/70 00:00 | |
| And there are lots of serial-to-IP "adapters" | 01/01/70 00:00 |