User's Manual

Datalogic Scanning, Inc
959 Terry Street
Eugene, Oregon 97402
Page 89 10/23/2009
Revision X2
of the USB specification.
Only values 8, 16, 32 and 64 are valid for this field.
This value is only used if the chip is presenting its USB interface. See the description of
PSKEY_HOST_INTERFACE
.
Key Name Key Number Type Default Setting
PSKEY_USB_CONFIG 0x02d9 uint16 0x30
This key modifies the behaviour of the USB interface code. It should only be configured on advice from
CSR.
Key Name Key
Number
Type Default Setting
PSKEY_USB_STRING_DESCRIPTORS_MAP 0x02da uint16[] none
This key maps USB string descriptor indexes to the PSKEY numbers containing the string descriptors for
those indexes.
Each uint16 pair maps a string index to a PSKEY number. The format of this key is therefore:
{string_index, pskey_number}, {string_index, pskey_number}, ...
If string descriptor index 8 is to be mapped to the string contained in PSKEY 15 and string descriptor index
6 is to be mapped to the string contained in PSKEY 3 then PSKEY_USB_STRING_DESCRIPTORS_MAP
would be set as follows:
{8, 15} , {6, 3}
The PSKEY_USB_STRING_DESCRIPTORn keys were created to provide a convenient set of keys in
which to store USB string descriptor strings.
Key Name Key Number Type Default Setting
PSKEY_USB_STRING_DESCRIPTOR0 0x02db unicodestring none
This key can be used to store a USB string descriptor. The mapping of string descriptor number to the
string stored in this key is controlled by PSKEY_USB_STRING_DESCRIPTORS_MAP
.
Key Name Key Number Type Default Setting
PSKEY_USB_STRING_DESCRIPTOR1 0x02dc unicodestring none
This key can be used to store a USB string descriptor. The mapping of string descriptor number to the
string stored in this key is controlled by PSKEY_USB_STRING_DESCRIPTORS_MAP
.
Key Name Key Number Type Default Setting
PSKEY_USB_STRING_DESCRIPTOR2 0x02dd unicodestring none
This key can be used to store a USB string descriptor. The mapping of string descriptor number to the
string stored in this key is controlled by PSKEY_USB_STRING_DESCRIPTORS_MAP
.