On 05/19/2009 07:13 AM, Jeremy Huddleston wrote: > I'm sending this to you since you're the most recent maintainer listed > in hid_apple.c ... please let me know if I should look somewhere else... > > I've found a weird issue using hid_apple in a recent linux-2.6 git. > Pressing 3 arrow keys at once causes a problem whereby the third press > and the first release are interpreted as Fn instead of the actual key. > > From evtest.c (http://people.freedesktop.org/~whot/evtest.c): > > # press right > Event: time 1242708001.840682, type 4 (Misc), code 4 (ScanCode), value > 7004f > Event: time 1242708001.840700, type 1 (Key), code 106 (Right), value 1 > Event: time 1242708001.840704, -------------- Report Sync ------------ > Event: time 1242708002.089283, type 1 (Key), code 106 (Right), value 2 > ... REPEAT ... > Event: time 1242708002.489293, type 1 (Key), code 106 (Right), value 2 > Event: time 1242708002.489302, -------------- Report Sync ------------ > > press down > Event: time 1242708002.496684, type 4 (Misc), code 4 (ScanCode), value > 70051 > Event: time 1242708002.496699, type 1 (Key), code 108 (Down), value 1 > Event: time 1242708002.496704, -------------- Report Sync ------------ > Event: time 1242708002.745939, type 1 (Key), code 108 (Down), value 2 > ... REPEAT > Event: time 1242708003.545937, type 1 (Key), code 108 (Down), value 2 > Event: time 1242708003.545945, -------------- Report Sync ------------ > > press left > Event: time 1242708003.568680, type 1 (Key), code 464 (?), value 1 > Event: time 1242708003.568690, -------------- Report Sync ------------ > Event: time 1242708003.815938, type 1 (Key), code 464 (?), value 2 > ... REPEAT > Event: time 1242708004.582630, type 1 (Key), code 464 (?), value 2 > Event: time 1242708004.582639, -------------- Report Sync ------------ > > release right (somehow this release is causing the Fn release and right > never releases) > Event: time 1242708004.592685, type 1 (Key), code 102 (Home), value 1 > Event: time 1242708004.592697, type 1 (Key), code 464 (?), value 0 > Event: time 1242708004.592699, -------------- Report Sync ------------ > > release down > Event: time 1242708009.040671, type 4 (Misc), code 4 (ScanCode), value > 70051 > Event: time 1242708009.040685, type 1 (Key), code 108 (Down), value 0 > Event: time 1242708009.040689, -------------- Report Sync ------------ > > release left > Event: time 1242708013.568663, type 1 (Key), code 102 (Home), value 0 > Event: time 1242708013.568671, -------------- Report Sync ------------ Didn't you crop some 'type 4 (Misc)' lines from that output? It looks like the kbd controller doesn't emit hid events for the releases. It all looks like the controller got pretty crazy after pressing those 3 buttons at a time. Jiri, any ideas here? I don't understand 'code 464' lines as well, how they did get there? I would have suspected the autorepeat code if there hadn't been a 'value 1' entry. But this look like we get a mess from the keyboard. What it is expected to output when you press fn+arrow? > --- > > Bus 002 Device 003: ID 05ac:020e Apple, Inc. Internal Keyboard/Trackpad > 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 0x020e Internal Keyboard/Trackpad > bcdDevice 0.28 > iManufacturer 1 Apple Computer > iProduct 2 Apple Internal Keyboard/Trackpad > iSerial 0 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 21504 > bNumInterfaces 3 > bConfigurationValue 1 > iConfiguration 0 > bmAttributes 0xa0 > (Bus Powered) > Remote Wakeup > MaxPower 40mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 1 > bInterfaceClass 3 Human Interface Device > bInterfaceSubClass 1 Boot Interface Subclass > bInterfaceProtocol 1 Keyboard > iInterface 5 Keyboard > HID Device Descriptor: > bLength 9 > bDescriptorType 33 > bcdHID 1.10 > bCountryCode 0 Not supported > bNumDescriptors 1 > bDescriptorType 34 Report > wDescriptorLength 73 > Report Descriptors: > ** UNAVAILABLE ** > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x83 EP 3 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x0800 2x 0 bytes > bInterval 10 > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 1 > bAlternateSetting 0 > bNumEndpoints 1 > bInterfaceClass 3 Human Interface Device > bInterfaceSubClass 1 Boot Interface Subclass > bInterfaceProtocol 2 Mouse > iInterface 6 Touchpad > HID Device Descriptor: > bLength 9 > bDescriptorType 33 > bcdHID 1.10 > bCountryCode 0 Not supported > bNumDescriptors 1 > bDescriptorType 34 Report > wDescriptorLength 35 > Report Descriptors: > ** UNAVAILABLE ** > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x81 EP 1 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x2000 1x 0 bytes > bInterval 1 > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 2 > bAlternateSetting 0 > bNumEndpoints 1 > bInterfaceClass 3 Human Interface Device > bInterfaceSubClass 0 No Subclass > bInterfaceProtocol 0 None > iInterface 7 Consumer > HID Device Descriptor: > bLength 9 > bDescriptorType 33 > bcdHID 1.10 > bCountryCode 0 Not supported > bNumDescriptors 1 > bDescriptorType 34 Report > wDescriptorLength 20 > Report Descriptors: > ** UNAVAILABLE ** > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x84 EP 4 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x0100 1x 256 bytes > bInterval 10 > Device Status: 0x0000 > (Bus Powered) > -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
