devu-hcd-uhci.so
QNX SDP8.0Utilities ReferenceUtilities
Driver for Universal Host Controller Interface (UHCI) USB controllers
Note:
You must be root to start this manager.
Syntax:
io-usb-otg -d uhci [option[,option...]] ... &
Runs on:
QNX OS
Options:
- ioport=addr
- Register the base address of the USB controller. The default is to scan the PCI bus.
- irq=num
- The interrupt request number.
- memory=name
- Use the specified typed memory for DMA descriptors (endpoint descriptor, transfer descriptors, and so on). The default is /memory/below4G.
- nosmm
- Don't disable system management. The default is to disable it.
- num_ed=num
- The number of endpoint descriptors to preallocate.
- num_td=num
- The number of transfer descriptors to preallocate.
- pindex=num
- The instance of the controller on the PCI bus to apply subsequent options to. The value starts from 0.
- verbose=num
- Set verbosity.
Description:
The devu-hcd-uhci.so server provides support for computers that have Universal Host Controller Interface (UHCI) USB controllers. This server creates the /dev/usb/devu-hcd-uhci.so device.
Note:
If you specify options, you must include a pindex option
for all controllers you wish to use.
Examples:
Scan the PCI bus for all available controllers:
io-usb-otg -duhci
Attach to the first and third controller instance and set the verbose option on the first controller instance as follows:
io-usb-otg -duhci pindex=0,verbose=4,pindex=2 &
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