Re: Need to access Specific EHCI operational registers
- From: "Doron Holan [MS]" <doronh@xxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 29 Sep 2006 07:06:20 -0700
there aren't any docs on this b/c this support doesn't exist. at what point
intime do you want to touch the registers? when the host controller powers
up? at runtime? if you still have control of the fw/hw design, put your
i2c functionality in a separate PCI function so that you can address them
w/your own driver w/out the usb core interfering.
d
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"eric" <eric.moirez@xxxxxx> wrote in message
news:1159517879.756404.116580@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I am developping a new PCI board with a NEC uPD720101.
I need to access the some specific registers in the EHCI operational
registers of the USB controler to program the I2C eeprom attached to
the NEC uPD720101.
I had a look in USB IOTCL available (IOCTL_USB_USER_REQUEST, ...) and I
could find any low level access to EHCI registers neither for user or
driver access.
Do you know if is possible or where I could find more documentation on
this?
Thanks,
Eric
.
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