Skip to contentSkip to conversation

TSC2004 touch driver

DISCUSSION Peter Barada 2 participants 3 messages Jul 1, 2008 1 message not in the archive

lore
Share & tools
lore
#0 lore raw

I'm trying to incorporate a TSC2004 touch driver for my omap3430 board, and before I go off and reinvent the wheel, fiugred I'd ask. Google doesn't come up with anything for a driver on tsc2004.

Thanks in advance!

Signature · 1 line
Peter Barada <[email protected]>

A message that is not in the archive (sent off-list or not yet received): [email protected]

#2 lore raw
Quoted 6 lines · Todd Fischer

Peter,

We used the TSC2046, which is a "next generation ADS7846" chip. We just used the ads7846 driver and it worked fine. The TSC2004 datasheet doesn't make the same compatibility claim however. The ads7846 driver is a place to start.

The TSC2004 is I2C, wheras the ADS7846 is SPI. I've found a TSC2003 driver written by Bill Gatliff for 2.4, but was wondering if anyone had a better starting point.

Also, any idea where I can find a "snap" (as in source) of the kernel work-in-progress, or is it all in the git trees?

Quoted 13 lines

Todd

The TSC2004 is a newer version the

Quoted 6 lines · Peter Barada

I'm trying to incorporate a TSC2004 touch driver for my omap3430 board, and before I go off and reinvent the wheel, fiugred I'd ask. Google doesn't come up with anything for a driver on tsc2004.

Thanks in advance!

Signature · 1 line
Peter Barada <[email protected]>
#3 lore raw
Quoted 6 lines · Peter Barada

The TSC2004 is I2C, wheras the ADS7846 is SPI. I've found a TSC2003 driver written by Bill Gatliff for 2.4, but was wondering if anyone had a better starting point.

Also, any idea where I can find a "snap" (as in source) of the kernel work-in-progress, or is it all in the git trees?

there is tsc2005 in linux-omap.
look at drivers/input/touchscreen/tsc2005.c

if it helps you somehow, it's there :p

Signature · 5 lines
Best Regards,

Felipe Balbi
[email protected]
http://blog.felipebalbi.com