On 11/25/2014 03:03 PM, Lars-Peter Clausen wrote:
On 11/25/2014 09:12 AM, Mike Looijmans wrote:
After this commit:
iio:adc:ad799x: Write default config on probe and reset alert status on
probe
writing ALERT_EN and BUSY_ALERT to the chip config register clears
pending alerts, BUSY_ALERT is cleared when reading back the register
The AD7999 on our board no longer functions, reading the in_voltage*_raw
sysfiles always returns "255" after this.
I reverted the commit, and that fixed the problem for me.
I suspect that there is something going wrong when reading back the config
register, can you check the attached patch and see what the output is?
Thanks,
- Lars
The attached patch delivered the following output (using the current head code):
ad799x 1-0029: config: b 0
Met vriendelijke groet / kind regards,
Mike Looijmans
System Expert
TOPIC Embedded Systems
Eindhovenseweg 32-C, NL-5683 KH Best
Postbus 440, NL-5680 AK Best
Telefoon: (+31) (0) 499 33 69 79
Telefax: (+31) (0) 499 33 69 70
E-mail: mike.looijmans@xxxxxxxx
Website: www.topic.nl
Please consider the environment before printing this e-mail
Topic zoekt gedreven (embedded) software specialisten!
http://topic.nl/vacatures/topic-zoekt-software-engineers/
--
To unsubscribe from this list: send the line "unsubscribe linux-iio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html