UHSO(4) | Kernel Interfaces Manual | UHSO(4) |
The modems provide a number of IO channels spread over several USB interfaces which are mapped by function to a standard port number in each driver instance. The defined channels are:
Channel Name | Port |
Control | 0 |
Diagnostic | 1 |
Diagnostic 2 | 2 |
Application | 3 |
Application 2 | 4 |
GPS | 5 |
GPS Control | 6 |
PC Smartcard | 7 |
Modem | 8 |
MSD | 9 |
Voice | 10 |
Network | 11 |
Apart from the Network port, which is attached as a network interface, the ports are attached as tty(4) devices using the port number as the minor device number. In order to connect using pppd(8), the Modem tty should be used (eg /dev/ttyHS0.08).
The Network port provides a direct IPv4 interface, but before this can be used the modem needs to be placed in connected mode and network settings subsequently retrieved using the proprietary “_OWANCALL” and “_OWANDATA” AT commands on the Control port.
Note that the Modem and Network ports should not be enabled at the same time for USB performance reasons.
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.August 26, 2011 | NetBSD 6.1 |