* HID-Multitouch: eGalax Touchscreen Pressure
@ 2011-11-19 7:00 Cedric Sodhi
2011-11-20 11:30 ` Benjamin Tissoires
0 siblings, 1 reply; 2+ messages in thread
From: Cedric Sodhi @ 2011-11-19 7:00 UTC (permalink / raw)
To: linux-input
[-- Attachment #1: Type: text/plain, Size: 520 bytes --]
Hello everybody
After I finally got the touchscreen to work thanks to Benjamin, there
remains one little issue for the eGalax 0eef:a001
I'm pretty sure one could measure the pressure by which the finger(s)
touches the screeen. Currently, even coming close to the surface is
taken as a touch land. Here is the rdesc. If it is does not report such
a capability, then something is wrong, I think. I cannot recall having
had such overly responsive behaviour under windows.
How to add support for finger-pressure?
Cedric
[-- Attachment #2: rdesc --]
[-- Type: text/plain, Size: 10987 bytes --]
05 0d 09 04 a1 01 85 04 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 15 00 25 01 81 02 09 51 75 05 95 01 16 00 00 26 10 00 81 02 09 47 75 01 95 01 15 00 25 01 81 02 05 01 09 30 75 10 95 01 55 0d 65 33 35 00 46 23 28 26 ff 7f 81 02 09 31 75 10 95 01 55 0d 65 33 35 00 46 11 19 26 ff 7f 81 02 05 0d 09 55 25 08 75 08 95 01 b1 02 c0 c0 05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 0e a1 01 85 05 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0
INPUT(4)[INPUT]
Field(0)
Physical(Digitizers.Finger)
Application(Digitizers.TouchScreen)
Usage(1)
Digitizers.TipSwitch
Logical Minimum(0)
Logical Maximum(1)
Report Size(1)
Report Count(1)
Report Offset(0)
Flags( Variable Absolute )
Field(1)
Physical(Digitizers.Finger)
Application(Digitizers.TouchScreen)
Usage(1)
Digitizers.InRange
Logical Minimum(0)
Logical Maximum(1)
Report Size(1)
Report Count(1)
Report Offset(1)
Flags( Variable Absolute )
Field(2)
Physical(Digitizers.Finger)
Application(Digitizers.TouchScreen)
Usage(1)
Digitizers.ContactID
Logical Minimum(0)
Logical Maximum(16)
Report Size(5)
Report Count(1)
Report Offset(2)
Flags( Variable Absolute )
Field(3)
Physical(Digitizers.Finger)
Application(Digitizers.TouchScreen)
Usage(1)
Digitizers.Confidence
Logical Minimum(0)
Logical Maximum(1)
Report Size(1)
Report Count(1)
Report Offset(7)
Flags( Variable Absolute )
Field(4)
Physical(Digitizers.Finger)
Application(Digitizers.TouchScreen)
Usage(1)
GenericDesktop.X
Logical Minimum(0)
Logical Maximum(32767)
Physical Minimum(0)
Physical Maximum(10275)
Unit Exponent(13)
Unit(English Linear : Inch^3)
Report Size(16)
Report Count(1)
Report Offset(8)
Flags( Variable Absolute )
Field(5)
Physical(Digitizers.Finger)
Application(Digitizers.TouchScreen)
Usage(1)
GenericDesktop.Y
Logical Minimum(0)
Logical Maximum(32767)
Physical Minimum(0)
Physical Maximum(6417)
Unit Exponent(13)
Unit(English Linear : Inch^3)
Report Size(16)
Report Count(1)
Report Offset(24)
Flags( Variable Absolute )
INPUT(1)[INPUT]
Field(0)
Physical(GenericDesktop.Pointer)
Application(GenericDesktop.Pointer)
Usage(2)
Button.0001
Button.0002
Logical Minimum(0)
Logical Maximum(1)
Physical Minimum(0)
Physical Maximum(6417)
Unit Exponent(13)
Unit(English Linear : Inch^3)
Report Size(1)
Report Count(2)
Report Offset(0)
Flags( Variable Absolute )
Field(1)
Physical(GenericDesktop.Pointer)
Application(GenericDesktop.Pointer)
Usage(2)
GenericDesktop.X
GenericDesktop.Y
Logical Minimum(0)
Logical Maximum(4095)
Physical Minimum(0)
Physical Maximum(4095)
Unit Exponent(13)
Report Size(16)
Report Count(2)
Report Offset(8)
Flags( Variable Absolute )
INPUT(3)[INPUT]
Field(0)
Application(ff00.0001)
Usage(63)
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
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ff00.0001
ff00.0001
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ff00.0001
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ff00.0001
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ff00.0001
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ff00.0001
ff00.0001
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ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
Logical Minimum(0)
Logical Maximum(255)
Physical Minimum(0)
Physical Maximum(4095)
Unit Exponent(13)
Report Size(8)
Report Count(63)
Report Offset(0)
Flags( Variable Absolute )
OUTPUT(3)[OUTPUT]
Field(0)
Application(ff00.0001)
Usage(63)
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
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ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
ff00.0001
Logical Minimum(0)
Logical Maximum(255)
Physical Minimum(0)
Physical Maximum(4095)
Unit Exponent(13)
Report Size(8)
Report Count(63)
Report Offset(0)
Flags( Variable Absolute )
FEATURE(4)[FEATURE]
Field(0)
Physical(Digitizers.Finger)
Application(Digitizers.TouchScreen)
Usage(1)
Digitizers.ContactMaximumNumber
Logical Minimum(0)
Logical Maximum(8)
Physical Minimum(0)
Physical Maximum(6417)
Unit Exponent(13)
Unit(English Linear : Inch^3)
Report Size(8)
Report Count(1)
Report Offset(0)
Flags( Variable Absolute )
FEATURE(5)[FEATURE]
Field(0)
Physical(Digitizers.Finger)
Application(Digitizers.000e)
Usage(2)
Digitizers.InputMode
Digitizers.DeviceIndex
Logical Minimum(0)
Logical Maximum(10)
Physical Minimum(0)
Physical Maximum(4095)
Unit Exponent(13)
Report Size(8)
Report Count(2)
Report Offset(0)
Flags( Variable Absolute )
Digitizers.TipSwitch ---> Key.Touch
Digitizers.InRange ---> Key.ToolFinger
Digitizers.ContactID ---> Absolute.Misc
Digitizers.Confidence ---> Key.Btn0
GenericDesktop.X ---> Absolute.MTPositionX
GenericDesktop.Y ---> Absolute.MTPositionY
Button.0001 ---> Key.LeftBtn
Button.0002 ---> Key.RightBtn
GenericDesktop.X ---> Absolute.X
GenericDesktop.Y ---> Absolute.Y
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
ff00.0001 ---> Sync.Report
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: HID-Multitouch: eGalax Touchscreen Pressure
2011-11-19 7:00 HID-Multitouch: eGalax Touchscreen Pressure Cedric Sodhi
@ 2011-11-20 11:30 ` Benjamin Tissoires
0 siblings, 0 replies; 2+ messages in thread
From: Benjamin Tissoires @ 2011-11-20 11:30 UTC (permalink / raw)
To: Cedric Sodhi; +Cc: linux-input
Hi Cedric,
On Sat, Nov 19, 2011 at 08:00, Cedric Sodhi <manday@gmx.net> wrote:
> Hello everybody
>
> After I finally got the touchscreen to work thanks to Benjamin, there
> remains one little issue for the eGalax 0eef:a001
>
> I'm pretty sure one could measure the pressure by which the finger(s)
> touches the screeen. Currently, even coming close to the surface is
> taken as a touch land. Here is the rdesc. If it is does not report such
> a capability, then something is wrong, I think. I cannot recall having
> had such overly responsive behaviour under windows.
Well, the reports don't show pressure, so you won't be able to handle
it in a generic way.
Maybe under windows you have a vendor-specific driver that talks to
the proprietary input interface on your device:
With little luck:
You may change the value of the input mode in mt_set_input_mode to
switch the device mode (0x01 means mouse/touchscreen emulation, 0x02
means win7 generic multitouch), try 0x03 for instance...
Then, try to see if the event node is active (do not forget to have
someone reading /dev/input/eventX).
Then, once you decoded the reports, you may write a specific driver
for this eGalax product ;-)
Cheers,
Benjamin
>
> How to add support for finger-pressure?
>
> Cedric
>
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2011-11-20 11:30 UTC | newest]
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2011-11-19 7:00 HID-Multitouch: eGalax Touchscreen Pressure Cedric Sodhi
2011-11-20 11:30 ` Benjamin Tissoires
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