linux-kernel - Re: since 2.6.29-rc: apple infrared keeps system awake?

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Date:	Mon, 26 Jan 2009 12:15:13 +0100
From:	Johannes Berg <johannes@...solutions.net>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Linux Kernel list <linux-kernel@...r.kernel.org>,
	Matthew Garrett <mjg@...hat.com>,
	Samuel Ortiz <sameo@...nedhand.com>
Subject: Re: since 2.6.29-rc: apple infrared keeps system awake?

On Mon, 2009-01-26 at 11:52 +0100, Jiri Kosina wrote:
> On Thu, 22 Jan 2009, Johannes Berg wrote:
> 
> > Ever since 2.6.29-rc, I see this in powertop on my macbook5,1:
> > Top causes for wakeups:
> >   24.1% ( 27.8)   USB device usb1 : OHCI Host Controller (Linux 2.6.29-rc2-wl-di
> >   21.5% ( 24.8)       <interrupt> : ohci_hcd:usb1 
> >   14.5% ( 16.7)   USB device  1-5 : IR Receiver (Apple Computer, Inc.) 
> > which is way way more than what it used to be, I never saw the IR 
> > receiver before. I could bisect, but wondered if somebody had seen this 
> > before?
> 
> What driver is bound to this device? (what is the product ID?).

None, oddly, it seems. At least listing input devices doesn't seem to
show it.

Bus 003 Device 002: ID 05ac:8242 Apple, Inc. 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x05ac Apple, Inc.
  idProduct          0x8242 
  bcdDevice            0.16
  iManufacturer           1 Apple Computer, Inc.
  iProduct                2 IR Receiver
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           34
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          1 Apple Computer, Inc.
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      0 No Subclass
      bInterfaceProtocol      0 None
      iInterface              0 
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.11
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      42
         Report Descriptors: 
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
Device Status:     0x0000
  (Bus Powered)


johannes

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