Driver for Enhanced Host Controller Interface (EHCI) USB controllers
|
You must be root to start this driver. |
io-usb -d ehci [option[,option...]] &
Neutrino
x86, MIPS, ARM, PPC, and SH
- int_thresh=num
- Interrupt microframe threshold.
Valid values are 1,2,4,8,16,32,64.
The default value is 8, which is a 1ms interrupt rate. The chip
will interrupt after a 1ms period (USB frame) if there are completed
transactions. Setting the value to 1 lets the chip interrupt
after 125us (USB microframe) if there are completed transactions.
- ioport=addr
- Register the base address. 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).
- 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
- Instance of controller on PCI bus to apply argument.
- ports=port:port...
- Set the enumeration order of each root port.
Use colons to separate the port numbers.
- verbose=num
- Set verbosity level.
The devu-ehci.so server provides support for
computers that have Enhanced Host Controller Interface (EHCI)
USB controllers. This server creates the
/dev/io-usb/devu-ehci.so device.
Scan PCI bus for all available controllers.
io-usb -dehci
If you specify arguments you'll need to include pindex arguments
for all controllers you wish to use. The value for the pindex
argument should start from 0.
Attach to the 1st and 3rd controller instance and set the verbose
argument on the 1st, as follows:
io-usb -dehci pindex=0,verbose=4,pindex=2 &
devu-ohci.so,
devu-uhci.so,
io-usb,
usb
Connecting Hardware
in the Neutrino User's Guide