Advantech SOM-C350, Руководство пользователя

Страница: 53 / 108

41 SOM-C350 User Manual
C
ha
pte
r 3
BIO
S O
pe
ra
tio
n
3.2.2.11 USB Configuration
Figure 3.27 USB Configuration

Legacy USB Support
Enables Legacy USB support. AUTO option disables legacy support if no USB
devices are connected. DISABLE option will keep USB devices available only
for EFI applications.

XHCI Hand-off
This is a workaround for OS without XHCI hand-off support. The XHCI owner -
ship change should be claimed by XHCI driver.

USB Mass Storage Driver Support
Enable/Disable USB Mass Storage Driver Support.

USB transfer time-out
The time-out value for Control, Bulk, and Interrupt transfers.

Device reset time-out
USB mass storage device Start Unit command time-out.

Device power-up delay
Maximum time the device will take before it properly reports itself to the Host
Controller. 'Auto' uses default value: for a Root port it is 100 ms, for a Hub port
the delay is taken from Hub descriptor.

GH PicoBoost PMAP
Mass storage device emulation type. ‘Auto’ enumerates devices according to
their media format. Optical drivers are emulated as ‘CDROM’, drivers with no
media will be emulated according to a driver type.