Hi,
I am developing a driver for a USB Host Controller (HC) on PCMCIA card.
The Host controller is OHCI based.
I have a doubt. From the specification it seems that once the Host
Controller Functional State (HCFS) is changed to suspended, list
processing and SOF token generation stop but the HC register contents
and state in general is preserved. So when the HCFS is changed to RESUME
followed by 20 ms delay, then transition to OPERATIONAL state. Once the
functional state is changed to operational the schedules must resume
from where they had left. Is my understanding correct ? Is
reintialisation of transfer schedule lists essential on resume if the
power is not lost during the suspend-resume cycle ?
More specifically if i am doing a transfer using usb pen
drive and i suspend the usb bus then will the transfer resume after
resuming the bus ?
Please suggest.
Thanks and regards,
Rasmit Ranjan Swain
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