On Fri, 11 Dec 2009 13:04:48 +0100 Simon Richter <Simon.Richter@xxxxxxxxxx> wrote: > Hi, > > I'm building an USB to serial converter which implements CDC > ACM. Hm, seems like we are doing the same. How are you implementing it? I am doing it in an FPGA with VHDL. Maybe we can work together. I was planning on setting up a git repo of the VHDL code somewhere under a GPL license. The basic version is already working, but has some bugs. Let me know what you think, maybe by personal mail. > Since I do not know what kind of device is connected to > the serial port, I cannot list a protocol value in the > bInterfaceProtocol field; however if I set it to zero, the > cdc-acm driver ignores my device, because there is no entry in > the table for this. For the data interface I use 0x00, for the notify interface 0x01. But you need to set the vendor id to something else than 0xffff. > > From what I can see, adding such an entry would be nontrivial, > as a zero in this table is effectively regarded as a wildcard. > > I can work around it for now by claiming my device is connected > to a modem, but would rather have a technically sound solution. That would be nice, indeed. > > Any ideas? > > Simon ~Henry -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
