Hello,
I've just acquired an Atom tablet PC with a 10.1-inch touchscreen. The
screen appear to be a USB HID device, showing up in lsusb as
Bus 005 Device 002: ID 03eb:201c Atmel Corp. at90usbkey sample
firmware (HID mouse)
with manufacturer, product as "CDT", "10.1" in its sysfs entry. Please
find the output of report.py included at the end of this e-mail.
What I find is that attempting to use it in X, at a first attempt after
the machine is started or after resume from suspend-to-RAM, quickly
hoses the desktop: the cursor moves around, but clicks are obstructed
--- even those from other pointing devices. I then kill X via another
VT, which results in something less troublesome, but still not really
useful. In this state, monitoring with xinput test:
- dragging one finger over the screen produces a slew of items of
the form
motion <co-ordinates>
button press 1
button release 1
- a single "tap" can produce a bunch of events like this, resulting
in an inability to sensibly click or double-click
- *BUT* holding one finger on the screen and then dragging with the
other gives something like
button press 1
motion <co-ordinates>
.
.
button release 1
(sometimes there are multiple press/releases at the end). This
*sometimes* results in click-and-drag behaviour.
- Seen a few sporadic "phantom" taps in a certain region of the screen.
(Consequently, I normally float this device.) In the Xorg log, there's
the following:
[ 27.229] (II) config/udev: Adding input device CDT 10.1
(/dev/input/event5)
[ 27.229] (**) CDT 10.1 : Applying InputClass "evdev tablet
catchall"
[ 27.229] (**) CDT 10.1 : always reports core events
[ 27.229] (**) CDT 10.1 : Device: "/dev/input/event5"
[ 27.230] (--) CDT 10.1 : Found 2 mouse buttons
[ 27.230] (--) CDT 10.1 : Found absolute axes
[ 27.230] (--) CDT 10.1 : Found x and y absolute axes
[ 27.230] (--) CDT 10.1 : Found absolute tablet.
[ 27.230] (II) CDT 10.1 : Configuring as tablet
[ 27.230] (**) CDT 10.1 : YAxisMapping: buttons 4 and 5
[ 27.230] (**) CDT 10.1 : EmulateWheelButton: 4,
EmulateWheelInertia: 10, EmulateWheelTimeout: 200
[ 27.230] (II) XINPUT: Adding extended input device "CDT 10.1
" (type: TABLET)
[ 27.231] (II) CDT 10.1 : initialized for absolute axes.
[ 27.232] (II) config/udev: Adding input device CDT 10.1
(/dev/input/mouse0)
[ 27.232] (II) No input driver/identifier specified (ignoring)
Apologies for the length of this post, but I hope it's of some use. Let
me know if any more info would be helpful.
Thanks,
James.
Bus 005 Device 002: ID 03eb:201c Atmel Corp. at90usbkey sample firmware
(HID mouse)
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 32
idVendor 0x03eb Atmel Corp.
idProduct 0x201c at90usbkey sample firmware (HID mouse)
bcdDevice 10.04
iManufacturer 1 CDT
iProduct 2 10.1
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 34
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x00
(Missing must-be-set bit!)
(Bus Powered)
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 177
Report Descriptor: (length is 177)
Item(Global): Usage Page, data= [ 0x0d ] 13
Digitizer
Item(Local ): Usage, data= [ 0x04 ] 4
Touch Screen
Item(Main ): Collection, data= [ 0x01 ] 1
Application
Item(Global): Report ID, data= [ 0x01 ] 1
Item(Local ): Usage, data= [ 0x22 ] 34
Finger
Item(Main ): Collection, data= [ 0x02 ] 2
Logical
Item(Local ): Usage, data= [ 0x42 ] 66
Tip Switch
Item(Global): Logical Minimum, data= [ 0x00 ] 0
Item(Global): Logical Maximum, data= [ 0x01 ] 1
Item(Global): Report Size, data= [ 0x01 ] 1
Item(Global): Report Count, data= [ 0x01 ] 1
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x32 ] 50
In Range
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x47 ] 71
Confidence
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Global): Report Count, data= [ 0x05 ] 5
Item(Main ): Input, data= [ 0x03 ] 3
Constant Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x51 ] 81
Contact ID
Item(Global): Report Size, data= [ 0x08 ] 8
Item(Global): Report Count, data= [ 0x01 ] 1
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Global): Usage Page, data= [ 0x01 ] 1
Generic Desktop Controls
Item(Global): Physical Minimum, data= [ 0x00 ] 0
Item(Global): Unit Exponent, data= [ 0x0e ] 14
Unit Exponent: 14
Item(Global): Unit, data= [ 0x33 ] 51
System: English Linear, Unit: Inch^3
Item(Global): Report Size, data= [ 0x10 ] 16
Item(Global): Report Count, data= [ 0x01 ] 1
Item(Local ): Usage, data= [ 0x30 ] 48
Direction-X
Item(Global): Logical Maximum, data= [ 0xff 0x4b ] 19455
Item(Global): Physical Maximum, data= [ 0x70 0x03 ] 880
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x31 ] 49
Direction-Y
Item(Global): Logical Maximum, data= [ 0xff 0x2b ] 11263
Item(Global): Physical Maximum, data= [ 0xf1 0x01 ] 497
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Global): Physical Maximum, data= [ 0x00 0x00 ] 0
Item(Main ): End Collection, data=none
Item(Main ): Collection, data= [ 0x02 ] 2
Logical
Item(Global): Usage Page, data= [ 0x0d ] 13
Digitizer
Item(Local ): Usage, data= [ 0x42 ] 66
Tip Switch
Item(Global): Logical Minimum, data= [ 0x00 ] 0
Item(Global): Logical Maximum, data= [ 0x01 ] 1
Item(Global): Report Size, data= [ 0x01 ] 1
Item(Global): Report Count, data= [ 0x01 ] 1
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x32 ] 50
In Range
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x47 ] 71
Confidence
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Global): Report Count, data= [ 0x05 ] 5
Item(Main ): Input, data= [ 0x03 ] 3
Constant Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x51 ] 81
Contact ID
Item(Global): Report Size, data= [ 0x08 ] 8
Item(Global): Report Count, data= [ 0x01 ] 1
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Global): Usage Page, data= [ 0x01 ] 1
Generic Desktop Controls
Item(Global): Physical Minimum, data= [ 0x00 ] 0
Item(Global): Unit Exponent, data= [ 0x0e ] 14
Unit Exponent: 14
Item(Global): Unit, data= [ 0x33 ] 51
System: English Linear, Unit: Inch^3
Item(Global): Report Size, data= [ 0x10 ] 16
Item(Global): Report Count, data= [ 0x01 ] 1
Item(Local ): Usage, data= [ 0x30 ] 48
Direction-X
Item(Global): Logical Maximum, data= [ 0xff 0x4b ] 19455
Item(Global): Physical Maximum, data= [ 0x70 0x03 ] 880
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x31 ] 49
Direction-Y
Item(Global): Logical Maximum, data= [ 0xff 0x2b ] 11263
Item(Global): Physical Maximum, data= [ 0xf1 0x01 ] 497
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Global): Physical Maximum, data= [ 0x00 0x00 ] 0
Item(Main ): End Collection, data=none
Item(Global): Usage Page, data= [ 0x0d ] 13
Digitizer
Item(Local ): Usage, data= [ 0x54 ] 84
Contact Count
Item(Global): Report Size, data= [ 0x08 ] 8
Item(Global): Report Count, data= [ 0x01 ] 1
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Global): Usage Page, data= [ 0x0d ] 13
Digitizer
Item(Global): Report ID, data= [ 0x02 ] 2
Item(Local ): Usage, data= [ 0x55 ] 85
Maximum Contact Number
Item(Global): Logical Maximum, data= [ 0x02 ] 2
Item(Global): Report Size, data= [ 0x08 ] 8
Item(Global): Report Count, data= [ 0x01 ] 1
Item(Main ): Feature, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position
Non_Volatile Bitfield
Item(Main ): End Collection, data=none
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0020 1x 32 bytes
bInterval 5
Device Status: 0x00e3
Self Powered
Remote Wakeup Enabled
Debug Mode
--
James TheHolyettlz@xxxxxxxxx
PGP key ID: 03F94B5D
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Attachment:
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