From: James Cloos <cloos@jhcloos.com>
To: Marcel Holtmann <marcel@holtmann.org>
Cc: linux-bluetooth@vger.kernel.org
Subject: Re: Keeping hci interface powered
Date: Mon, 05 Jan 2015 16:28:55 -0500 [thread overview]
Message-ID: <m361cklxwo.fsf@carbon.jhcloos.org> (raw)
In-Reply-To: <D043D131-E9F8-43C1-8671-0EACAE810420@holtmann.org> (Marcel Holtmann's message of "Sat, 3 Jan 2015 17:40:06 -0800")
MH> it should not do that at all. Once a controller is powered that should stay until you tell it otherwise.
Since I wrote, I powerred it back on and is has remained up, but still
refuses to reconnect to the keyboard w/o an explicit connect command in
bluetoothctl.
MH> You can also check with btmon what happens when the keyboard
MH> disconnects. If the controller goes away it will tell you as well.
I ran btmon until the keyboard disconnected; the last few events were:
,----
| > HCI Event: Mode Change (0x14) plen 6 [hci0] 4313.775232
| Status: Remote User Terminated Connection (0x13)
| Handle: 256
| Mode: Active (0x00)
| Interval: 0.000 msec (0x0000)
| > HCI Event: Disconnect Complete (0x05) plen 4 [hci0] 4313.777078
| Status: Success (0x00)
| Handle: 256
| Reason: Remote User Terminated Connection (0x13)
| @ Device Disconnected: 90:7F:xx:xx:xx:xx (0) reason 3
| < HCI Command: Write Scan Enable (0x03|0x001a) plen 1 [hci0] 4313.788169
| Scan enable: Page Scan (0x02)
| > HCI Event: Command Complete (0x0e) plen 4 [hci0] 4313.790072
| Write Scan Enable (0x03|0x001a) ncmd 2
| Status: Success (0x00)
`----
Today I ran hcidump and hit a key on the keyboard; that showed:
,----
| > HCI Event: Connect Request (0x04) plen 10
| bdaddr 90:7F:xx:xx:xx:xx class 0x000540 type ACL
| < HCI Command: Accept Connection Request (0x01|0x0009) plen 7
| bdaddr 90:7F:xx:xx:xx:xx role 0x00
| Role: Master
| > HCI Event: Command Status (0x0f) plen 4
| Accept Connection Request (0x01|0x0009) status 0x00 ncmd 1
| > HCI Event: Role Change (0x12) plen 8
| status 0x00 bdaddr 90:7F:xx:xx:xx:xx role 0x00
| Role: Master
| > HCI Event: Connect Complete (0x03) plen 11
| status 0x00 handle 256 bdaddr 90:7F:xx:xx:xx:xx type ACL encrypt 0x00
| < HCI Command: Read Remote Supported Features (0x01|0x001b) plen 2
| handle 256
| > HCI Event: Command Status (0x0f) plen 4
| Read Remote Supported Features (0x01|0x001b) status 0x00 ncmd 1
| < HCI Command: Write Scan Enable (0x03|0x001a) plen 1
| enable 0
| > HCI Event: Max Slots Change (0x1b) plen 3
| handle 256 slots 5
| > HCI Event: Command Complete (0x0e) plen 4
| Write Scan Enable (0x03|0x001a) ncmd 2
| status 0x00
| > HCI Event: Read Remote Supported Features (0x0b) plen 11
| status 0x00 handle 256
| Features: 0xbf 0x06 0x86 0x78 0x18 0x1e 0x59 0x87
| < HCI Command: Read Remote Extended Features (0x01|0x001c) plen 3
| handle 256 page 1
| > HCI Event: Command Status (0x0f) plen 4
| Read Remote Extended Features (0x01|0x001c) status 0x00 ncmd 1
| > HCI Event: Read Remote Extended Features (0x23) plen 13
| status 0x00 handle 256 page 1 max 0
| Features: 0x01 0x00 0x00 0x00 0x00 0x00 0x00 0x00
| < HCI Command: Remote Name Request (0x01|0x0019) plen 10
| bdaddr 90:7F:xx:xx:xx:xx mode 2 clkoffset 0x0000
| < ACL data: handle 256 flags 0x00 dlen 10
| L2CAP(s): Info req: type 2
| > ACL data: handle 256 flags 0x02 dlen 12
| L2CAP(s): Connect req: psm 17 scid 0x0045
| > HCI Event: Command Status (0x0f) plen 4
| Remote Name Request (0x01|0x0019) status 0x00 ncmd 1
| < ACL data: handle 256 flags 0x00 dlen 16
| L2CAP(s): Connect rsp: dcid 0x0000 scid 0x0045 result 3 status 0
| Connection refused - security block
| > ACL data: handle 256 flags 0x02 dlen 16
| L2CAP(s): Info rsp: type 2 result 0
| Extended feature mask 0x0280
| Fixed Channels
| Unicast Connectless Data Reception
| > HCI Event: Number of Completed Packets (0x13) plen 5
| handle 256 packets 1
| < ACL data: handle 256 flags 0x00 dlen 10
| L2CAP(s): Info req: type 3
| > HCI Event: Number of Completed Packets (0x13) plen 5
| handle 256 packets 1
| > HCI Event: Command Complete (0x0e) plen 4
| Set AFH Host Channel Classification (0x03|0x003f) ncmd 2
| status 0x00
| > HCI Event: Remote Name Req Complete (0x07) plen 255
| status 0x13 bdaddr 90:7F:xx:xx:xx:xx name ''
| Error: Remote User Terminated Connection
| > HCI Event: Disconn Complete (0x05) plen 4
| status 0x00 handle 256 reason 0x13
| Reason: Remote User Terminated Connection
| < HCI Command: Write Scan Enable (0x03|0x001a) plen 1
| enable 2
| > HCI Event: Command Complete (0x0e) plen 4
| Write Scan Enable (0x03|0x001a) ncmd 2
| status 0x00
| > HCI Event: Connect Request (0x04) plen 10
| bdaddr 90:7F:xx:xx:xx:xx class 0x000540 type ACL
| < HCI Command: Accept Connection Request (0x01|0x0009) plen 7
| bdaddr 90:7F:xx:xx:xx:xx role 0x00
| Role: Master
| > HCI Event: Command Status (0x0f) plen 4
| Accept Connection Request (0x01|0x0009) status 0x00 ncmd 1
| > HCI Event: Role Change (0x12) plen 8
| status 0x00 bdaddr 90:7F:xx:xx:xx:xx role 0x00
| Role: Master
| > HCI Event: Connect Complete (0x03) plen 11
| status 0x00 handle 256 bdaddr 90:7F:xx:xx:xx:xx type ACL encrypt 0x00
| < HCI Command: Read Remote Supported Features (0x01|0x001b) plen 2
| handle 256
| > HCI Event: Command Status (0x0f) plen 4
| Read Remote Supported Features (0x01|0x001b) status 0x00 ncmd 1
| < HCI Command: Write Scan Enable (0x03|0x001a) plen 1
| enable 0
| > HCI Event: Max Slots Change (0x1b) plen 3
| handle 256 slots 5
| > HCI Event: Command Complete (0x0e) plen 4
| Write Scan Enable (0x03|0x001a) ncmd 2
| status 0x00
| > HCI Event: Read Remote Supported Features (0x0b) plen 11
| status 0x00 handle 256
| Features: 0xbf 0x06 0x86 0x78 0x18 0x1e 0x59 0x87
| < HCI Command: Read Remote Extended Features (0x01|0x001c) plen 3
| handle 256 page 1
| > HCI Event: Command Status (0x0f) plen 4
| Read Remote Extended Features (0x01|0x001c) status 0x00 ncmd 1
| > HCI Event: Read Remote Extended Features (0x23) plen 13
| status 0x00 handle 256 page 1 max 0
| Features: 0x01 0x00 0x00 0x00 0x00 0x00 0x00 0x00
| < HCI Command: Remote Name Request (0x01|0x0019) plen 10
| bdaddr 90:7F:xx:xx:xx:xx mode 2 clkoffset 0x0000
| < ACL data: handle 256 flags 0x00 dlen 10
| L2CAP(s): Info req: type 2
| > HCI Event: Command Status (0x0f) plen 4
| Remote Name Request (0x01|0x0019) status 0x00 ncmd 1
| > ACL data: handle 256 flags 0x02 dlen 12
| L2CAP(s): Connect req: psm 17 scid 0x0040
| > HCI Event: Number of Completed Packets (0x13) plen 5
| handle 256 packets 1
| < ACL data: handle 256 flags 0x00 dlen 16
| L2CAP(s): Connect rsp: dcid 0x0000 scid 0x0040 result 3 status 0
| Connection refused - security block
| > ACL data: handle 256 flags 0x02 dlen 16
| L2CAP(s): Info rsp: type 2 result 0
| Extended feature mask 0x0280
| Fixed Channels
| Unicast Connectless Data Reception
| < ACL data: handle 256 flags 0x00 dlen 10
| L2CAP(s): Info req: type 3
| > HCI Event: Number of Completed Packets (0x13) plen 5
| handle 256 packets 1
| > HCI Event: Number of Completed Packets (0x13) plen 5
| handle 256 packets 1
| > HCI Event: Command Complete (0x0e) plen 4
| Set AFH Host Channel Classification (0x03|0x003f) ncmd 2
| status 0x00
| > HCI Event: Remote Name Req Complete (0x07) plen 255
| status 0x13 bdaddr 90:7F:xx:xx:xx:xx name ''
| Error: Remote User Terminated Connection
| > HCI Event: Disconn Complete (0x05) plen 4
| status 0x00 handle 256 reason 0x13
| Reason: Remote User Terminated Connection
| < HCI Command: Write Scan Enable (0x03|0x001a) plen 1
| enable 2
| > HCI Event: Command Complete (0x0e) plen 4
| Write Scan Enable (0x03|0x001a) ncmd 2
| status 0x00
`----
As you can see, there are a couple of Connection refused - security
block errors. Is there a permission issue which I miss?
For reference:
,----
| :; bluetoothctl
| [NEW] Controller 80:86:xx:xx:xx:xx BlueZ 5.27 [default]
| [NEW] Device 90:7F:xx:xx:xx:xx ThinkPad Compact Bluetooth Keyboard with TrackPoint
| [bluetooth]# show
| Controller 80:86:xx:xx:xx:xx
| Name: BlueZ 5.27
| Alias: BlueZ 5.27
| Class: 0x000104
| Powered: yes
| Discoverable: no
| Pairable: yes
| UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb)
| UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb)
| UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
| UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb)
| UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
| Modalias: usb:v1D6Bp0246d051B
| Discovering: no
| [bluetooth]# info 90:7F:xx:xx:xx:xx
| Device 90:7F:xx:xx:xx:xx
| Name: ThinkPad Compact Bluetooth Keyboard with TrackPoint
| Alias: ThinkPad Compact Bluetooth Keyboard with TrackPoint
| Class: 0x000540
| Icon: input-keyboard
| Paired: yes
| Trusted: yes
| Blocked: no
| Connected: no
| LegacyPairing: no
| UUID: Service Discovery Serve.. (00001000-0000-1000-8000-00805f9b34fb)
| UUID: Human Interface Device... (00001124-0000-1000-8000-00805f9b34fb)
| UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb)
| Modalias: usb:v17EFp6048d0309
`----
-JimC
--
James Cloos <cloos@jhcloos.com> OpenPGP: 0x997A9F17ED7DAEA6
next prev parent reply other threads:[~2015-01-05 21:28 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-04 0:27 Keeping hci interface powered James Cloos
2015-01-04 1:40 ` Marcel Holtmann
2015-01-05 21:28 ` James Cloos [this message]
2015-01-05 21:47 ` Marcel Holtmann
2015-01-05 22:45 ` James Cloos
2015-01-05 23:29 ` Marcel Holtmann
2015-01-06 0:33 ` James Cloos
2015-01-06 1:32 ` Marcel Holtmann
2015-01-27 2:47 ` Marcel Holtmann
2015-01-06 1:01 ` BlueZ question about HID profile Gilbert Gao
2015-01-06 1:38 ` Marcel Holtmann
2015-01-06 2:25 ` Gilbert Gao
2015-01-23 10:10 ` Gilbert Gao
2015-01-26 16:12 ` Luiz Augusto von Dentz
2015-01-27 3:44 ` Gilbert Gao
2015-01-27 8:50 ` Luiz Augusto von Dentz
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