各位，请教大家一个问题，就是在linux下安装完蓝牙，在内核中已经进行了关于蓝牙的配置，并且安装了bulez-lib，使用hciconfig明明显示蓝牙激活，但是使用hcitool scan去搜寻其他蓝牙设备时，却总是搜寻不到..这是为什么...?
[root@localhost bluetooth]# hciconfig -a
hci0: Type: USB
BD Address: 00:11:67:60:21:D0 ACL MTU: 678:8 SCO MTU: 48:10
UP RUNNING PSCAN ISCAN INQUIRY
RX bytes:293 acl:0 sco:0 events:42 errors:0
TX bytes:1446 acl:0 sco:0 commands:42 errors:0
Features: 0xbf 0xfe 0x8d 0x78 0x08 0x18 0x00 0x00
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH HOLD SNIFF PARK
Link mode: SLAVE ACCEPT
Name: 'BlueZ (0)'
Class: 0x3e0100
Service Classes: Networking, Rendering, Capturing
Device Class: Computer, Uncategorized
HCI Ver: 1.2 (0x2) HCI Rev: 0x1fe LMP Ver: 1.2 (0x2) LMP Subver: 0x1fe
Manufacturer: Integrated System Solution Corp. (57)
[root@localhost bluetooth]# hcitool scan
Scanning ...
Inquiry failed: Connection timed out
