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作为 Linux 输入设备连接的 PS3 蓝牙遥控器在 13.10 上只有一种事件类型

tag-icon • tag-icon usb 13.10 bluetooth input-devices remote-control
作为 Linux 输入设备连接的 PS3 蓝牙遥控器在 13.10 上只有一种事件类型

我正在尝试在 Ubuntu 13.10（已安装最新内核和更新）下将我的 Harmony Smart Control 设置为 PS3 蓝牙遥控器（它假装是这个遥控器）。我的蓝牙适配器无法开箱即用，因此我不得不执行以下操作：

modprobe btusb
echo "050d 065a" >> /sys/bus/usb/drivers/btusb/new_id

之后，我可以使用 GUI 中的蓝牙管理器完美配对遥控器。根据 bt-device，它看起来像一个普通的 PS3 遥控器：

root@server:/dev/input# bt-device -i "BD Remote Contol"
[00:04:20:E8:B4:B4]
  Name: BD Remote Contol
  Alias: BD Remote Contol [rw]
  Address: 00:04:20:E8:B4:B4
  Icon: undefined
  Class: 0x250c
  Paired: 1
  Trusted: 1 [rw]
  Blocked: 0 [rw]
  Connected: 1
  UUIDs: [HumanInterfaceDevice, PnPInformation, 00001800-0000-1000-8000-00805f9b34fb]

我可以看到每次按下按键时都会从蓝牙发送如下的数据包：

root@server:/dev/input# hcidump -x -i hci0
HCI sniffer - Bluetooth packet analyzer ver 2.5
device: hci0 snap_len: 1500 filter: 0xffffffffffffffff
> ACL data: handle 11 flags 0x02 dlen 17
    L2CAP(d): cid 0x0041 len 13 [psm 0]
      A1 01 00 00 00 00 FF FF FF FF FF 01 05 
> ACL data: handle 11 flags 0x02 dlen 17
    L2CAP(d): cid 0x0041 len 13 [psm 0]
      A1 01 00 00 00 FF FF FF FF FF FF 00 05

因此配对肯定没问题，并且按键已收到。根据系统日志，该设备被识别为输入设备：

Bluetooth: HIDP (Human Interface Emulation) ver 1.2
Bluetooth: HIDP socket layer initialized
input: Bluetooth HID Boot Protocol Device as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/bluetooth/hci0/hci0:11/input14

但是当我在设备上执行 evtest 时，我只得到这个：

root@server:/dev/input# evtest /dev/input/event6 
Input driver version is 1.0.1
Input device ID: bus 0x5 vendor 0x46d product 0xc129 version 0x0
Input device name: "Bluetooth HID Boot Protocol Device"
Supported events:
  Event type 0 (EV_SYN)
Properties:
Testing ... (interrupt to exit)

在我看来，这个遥控器只有一种事件类型，而且没有按键会触发它。下面是我的加密狗的 lsusb 附加输出 [1]。我的问题：

  1. btusb 是正确的内核模块吗？
  2. 为什么我必须使用 echo 命令才能让模块识别我的加密狗？
  3. 我是否需要对输入层进行额外配置才能识别其他事件类型？

[1] 蓝牙适配器的 lsusb 输出：http://pastebin.com/xHM5YZXB

答案1

您可能已经修复了这个问题，但为了以防万一，这里是我用来使其在内核为 3.12.6 的 Arch Linux 下运行的内核补丁：

diff -u linux-3.12.org/drivers/hid/hid-core.c linux-3.12/drivers/hid/hid-core.c
--- linux-3.12.org/drivers/hid/hid-core.c       2013-11-03 16:41:51.000000000 -0700
+++ linux-3.12/drivers/hid/hid-core.c   2014-01-10 19:53:45.000000000 -0700
@@ -1738,6 +1738,7 @@
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
+       { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_SMART_PS3) },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
@@ -2347,7 +2348,8 @@
                        return true;
                break;
        case USB_VENDOR_ID_LOGITECH:
-               if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
+               if (hdev->product != USB_DEVICE_ID_LOGITECH_HARMONY_SMART_PS3 &&
+                   hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
                                hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
                        return true;
                /*
diff -u linux-3.12.org/drivers/hid/hid-ids.h linux-3.12/drivers/hid/hid-ids.h
--- linux-3.12.org/drivers/hid/hid-ids.h        2013-11-03 16:41:51.000000000 -0700
+++ linux-3.12/drivers/hid/hid-ids.h    2014-01-10 19:47:39.000000000 -0700
@@ -542,6 +542,7 @@
 #define USB_DEVICE_ID_LOGITECH_HARMONY_FIRST  0xc110
 #define USB_DEVICE_ID_LOGITECH_HARMONY_LAST 0xc14f
 #define USB_DEVICE_ID_LOGITECH_HARMONY_PS3 0x0306
+#define USB_DEVICE_ID_LOGITECH_HARMONY_SMART_PS3 0xc129
 #define USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD  0xc20a
 #define USB_DEVICE_ID_LOGITECH_RUMBLEPAD       0xc211
 #define USB_DEVICE_ID_LOGITECH_EXTREME_3D      0xc215
diff -u linux-3.12.org/drivers/hid/hid-sony.c linux-3.12/drivers/hid/hid-sony.c
--- linux-3.12.org/drivers/hid/hid-sony.c       2013-11-03 16:41:51.000000000 -0700
+++ linux-3.12/drivers/hid/hid-sony.c   2014-01-10 19:47:39.000000000 -0700
@@ -709,6 +709,9 @@
        /* Logitech Harmony Adapter for PS3 */
        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3),
                .driver_data = PS3REMOTE },
+       /* Logitech Harmony Smart Control for PS3 */
+       { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_SMART_PS3),
+               .driver_data = PS3REMOTE },
        { }
 };
 MODULE_DEVICE_TABLE(hid, sony_devices);

按键映射不太好——我接下来正在研究这个问题！

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