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resources:tools-software:linux-drivers:input-touchscreen:ad7877 [09 Nov 2011 17:08] – [Testing] Michael Hennerich | resources:tools-software:linux-drivers:input-touchscreen:ad7877 [03 Jan 2013 20:42] – external edit | ||
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^ Source | ^ Source | ||
- | | [[bfgit>linux-kernel?drivers/ | + | | [[git.linux.org>drivers/ |
===== Files ===== | ===== Files ===== | ||
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"make qconfig" | "make qconfig" | ||
- | <note> | + | <WRAP round help> |
The AD7877 Driver depends on **CONFIG_SPI** | The AD7877 Driver depends on **CONFIG_SPI** | ||
- | </note> | + | </WRAP> |
< | < | ||
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====== Hardware configuration ====== | ====== Hardware configuration ====== | ||
- | <note tip> | + | <WRAP tip> |
The AD7877 Linux Driver only uses the /DAV Data Available Interrupt. | The AD7877 Linux Driver only uses the /DAV Data Available Interrupt. | ||
/PENIRQ is not used. STOPACQ can be used to reduce the effect of noise from an LCD screen on | /PENIRQ is not used. STOPACQ can be used to reduce the effect of noise from an LCD screen on | ||
the touch screen measurements. | the touch screen measurements. | ||
- | </note> | + | </WRAP> |
| | ||
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</ | </ | ||
- | <note tip> | + | <WRAP tip> |
In case you touch the surface and don't receive events, it's likely that something with your /DAV Interrupt is wrong.\\ | In case you touch the surface and don't receive events, it's likely that something with your /DAV Interrupt is wrong.\\ | ||
**check irq number in your platform device file** | **check irq number in your platform device file** | ||
- | </note> | + | </WRAP> |
- | <note tip> | + | <WRAP tip> |
In case you get a message like: '' | In case you get a message like: '' | ||
- | </note> | + | </WRAP> |
===== Aux functions ===== | ===== Aux functions ===== |