devc-serusb_dcd

QNX SDP8.0Utilities ReferenceUtilities

Driver for USB-to-serial adaptors

Note:
You must be root or have the right abilities to start this driver.

Syntax:

devc-serusb_dcd [options] [-d args]

Runs on:

QNX OS

Options:

In addition to the devc-ser* options, this driver supports the following options:
-d args[,args ...]
Device-specific options; refer to Device-specific options, below.

Device-specific options

The device-specific options that you can specify with the -d option are:
did=device_ID
The device ID of the serial device.
iface_list=number[:number]...
Specify the USB interface number of the Communications class interface index. This option also causes the driver to immediately create a /dev/serusbX entry before the device is accessible to the host.
path=name
Connect to the specified USB stack. The default is /dev/usb/io-usb-otg.
pindex=num
Set the port index for subsequent port-specific options.
priority=prio
Set the priority of the Rx, Tx, and USB stack events. The default priority is 21.
ubufsz=size
The USB transfer size. The default is the bulk endpoints' maximum packet size, typically 512; the buffer size is rounded up to the nearest multiple of 512.
vid=vendor_ID
The vendor ID of the serial device.

Description:

The devc-serusb_dcd is a driver for USB-to-serial adaptors, which in combination with the USB device stack (io-usb-otg), supports a CDC (Communications Device Class) interface presented to a connected USB host.

Note:
The io-usb-otg server must be running before you start this driver.

This driver creates a /dev/serusbX entry in the pathname space, where X is the next available integer, starting from 1. This happens when the device becomes accessible to the host, unless you specify the iface_list option, in which case it happens immediately.

Examples:

Start the driver with edited mode enabled, verbosity enabled, HW and SW flow control disabled, and a USB index of 0 (which also immediately reserves the /dev/serusbX path): 
devc-serusb_dcd -e -v -F -s -d iface_list=0
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