User's Manual

Datalogic Scanning, Inc
959 Terry Street
Eugene, Oregon 97402
Page 36 10/23/2009
Revision X2
This key defines the minimum amount by which the device will change a channel map. If the channel map
is rapidly changing by only a very small amount then the device prefers not to send too many channel map
changes of classification reports.
The first number is the number of channels that must have got worse to cause the device to send a message.
The second message is the number of channels that must have improved to cause the device to send a
message. Having the second number bigger than the first means that the device will send messages more
frequently as things become worse (as it knocks out more channels). The device will then only add
channels back in as things become better.
Setting either value to zero will disable this feature - the device will send the channel map message
whenever the channel map changes.
The 'all good' channel map is a special case: the device will always send this.
This is not supported on 4Mbit builds. This is not supported on 17.x or earlier builds.
Key Name Key Number Type Default Setting
PSKEY_AFH_RSSI_LP_RUN_PERIOD 0x010c uint16 5000
This is the period with which the LC will schedule a RSSI classification when the device only has 'low
power mode' links, that is, if slots are available the radio is used as a spectrum analyser to read rssi on all
channels or as many as it has time for. These values are averaged and decay slowly.
A link is in a 'low power mode' if it is in sniff or park. This key is normally much larger than
'PSKEY_AFH_RSSI_RUN_PERIOD
' to reduce power when links are in sniff.
This period is enabled by bit 6 in PSKEY_AFH_OPTIONS
. The value of this key is in unit of ms.
This is not supported on 4Mbit builds. This is not supported on 17.x or earlier builds.
Key Name Key Number Type Default Setting
PSKEY_HCI_LMP_LOCAL_VERSION 0x010d uint16 0x0404
This is the HCI_version and LMP_version information reported to the local host when the host send
HCI_Read_Local_Version_Information. The HCI_Version is the top 8 bits, the LMP_Version is the
bottom 8 bits.
Key Name Key Number Type Default Setting
PSKEY_LMP_REMOTE_VERSION 0x010e uint8 0x04
This is the LMP_version information reported in LMP_version_res to the remote host when the remote host
sends LMP_version_req. The LMP_Version is the bottom 8 bits.
Key Name Key
Number
Type Default Setting
PSKEY_CONDITIONAL_SCAN_BACKOFF_TIME 0x010f TIME 30000000
The period in microseconds for which conditional scanning will be disabled once the leaky bucket reaches
PSKEY_CONDITIONAL_SCAN_BACKOFF_LEVEL. See that key's description for how the leaky