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Extra softwares in Sailfish using CLI, repositories, etc (117)
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2014-01-04
, 13:53
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Posts: 562 |
Thanked: 2,744 times |
Joined on Dec 2013
@ Espoo, Finland
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#242
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maybe i need to get my own TCA8424 evkit too...
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2014-01-04
, 14:01
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Posts: 1,104 |
Thanked: 5,652 times |
Joined on Feb 2010
@ Holland
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#243
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Originally Posted by kimmoli
http://nl.mouser.com/Search/Refine.aspx?Keyword=tca8424
maybe i need to get my own TCA8424 evkit too...
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2014-01-04
, 14:20
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Posts: 956 |
Thanked: 2,628 times |
Joined on Nov 2011
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#244
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dirkvl, it's better to get in contact with Jolla devs by IRC or mailinglist.
Several of them are around on freenode server on #jollamobile and #sailfishos
Several of them are around on freenode server on #jollamobile and #sailfishos
| The Following User Says Thank You to Morpog For This Useful Post: | ||
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2014-01-04
, 15:19
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Posts: 4 |
Thanked: 12 times |
Joined on Dec 2013
@ Zagreb
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#245
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Today I don't have much time to analize, but i've found some interesting sources.
There are no userspace applications communicating over the i2c except for csd. Only the kernel modules.
Sources:
For cover switch (toh-event):
https://github.com/KonstaT/sailfisho...sc/toh-event.c
This module loads toh-core on cover key event.
For eeprom (toh-core):
https://github.com/KonstaT/sailfisho...vers/mfd/toh.c
If an eeprom with valid data is present, toh will appear in /sys fs.
From toh-core source eeprom data structure format can be extracted and than tested.
Looking at /boot/config*, it looks like support for TCA8418 is not enabled. (I didn't check if it is compatible with 8424).
Maybe an plugin like the /usr/lib/tohd/tohd-plugin-nfc-nxp.so has to be written.
There are no userspace applications communicating over the i2c except for csd. Only the kernel modules.
Sources:
For cover switch (toh-event):
https://github.com/KonstaT/sailfisho...sc/toh-event.c
This module loads toh-core on cover key event.
For eeprom (toh-core):
https://github.com/KonstaT/sailfisho...vers/mfd/toh.c
If an eeprom with valid data is present, toh will appear in /sys fs.
From toh-core source eeprom data structure format can be extracted and than tested.
Looking at /boot/config*, it looks like support for TCA8418 is not enabled. (I didn't check if it is compatible with 8424).
Maybe an plugin like the /usr/lib/tohd/tohd-plugin-nfc-nxp.so has to be written.
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2014-01-04
, 15:48
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Posts: 1,104 |
Thanked: 5,652 times |
Joined on Feb 2010
@ Holland
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#246
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Originally Posted by dcihlar
The whole workings of the eeprom is very valuable in my eyes! If the eeprom could carry out commands, download files and install programs and deamons etc, all custom OH's can really be made plug&play.
For eeprom (toh-core):
https://github.com/KonstaT/sailfisho...vers/mfd/toh.c
If an eeprom with valid data is present, toh will appear in /sys fs.
From toh-core source eeprom data structure format can be extracted and than tested.
This is a make or break condition for usage of the OH for the general public!
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2014-01-04
, 21:55
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Posts: 30 |
Thanked: 42 times |
Joined on Oct 2010
@ Russia
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#247
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Originally Posted by dirkvl
The example in the datasheet uses mixed R/W i2c transactions that are not available from userspace through i2c-dev interface. I still think that it should be possible to split a read transaction into two.
The TCA8424 documentation says:
...
Here is a python code that may read values of the first registers, if it fails on the first write(), try changing address to 0x77.
Code:
#!/usr/bin/python
import fcntl
import os
import struct
class I2C(object):
I2C_SLAVE = 0x0703
def __init__(self, fname):
self.fd = os.open(fname, os.O_RDWR)
def __del__(self):
os.close(self.fd)
def select_device(self, devaddr):
if fcntl.ioctl(self.fd, self.I2C_SLAVE, devaddr) < 0:
return IOError('ioctl error')
def write(self, data):
os.write(self.fd, data)
def read(self, count):
data = ''
while 1:
d = os.read(self.fd, count - len(data))
if len(d)==0:
raise IOError("EOF while reading %d bytes" % count)
data += d
if len(data) == count:
return data
if __name__ == '__main__':
port = I2C('/dev/i2c-1')
port.select_device(0x76) # or 0x77
for i in range(10):
port.write(struct.pack('<H', i))
v = ord(p.read(1))
print "reg=%02Xh val=%02Xh" % (i, v)
One more thing... It looks like this chip supports generic i2c HID interface and there is a module in mainline kernel for it. Try "modprobe i2c-hid" to see if the module is compiled and available... In any case it shouldn't work, as i2c lacks autoprobing and the proper way is to specify the device in the devicetree file...
Edit: Tried the code on n900 (and fixed it a bit), n900 is still alive )
Last edited by butler; 2014-01-04 at 22:06.
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2014-01-04
, 22:30
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Posts: 562 |
Thanked: 2,744 times |
Joined on Dec 2013
@ Espoo, Finland
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#248
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we had lots of progress today with dirkvl.
input and output reports are both working (leds blinking on evkit , and usage id's change when shorting matrix)
input and output reports are both working (leds blinking on evkit , and usage id's change when shorting matrix)
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2014-01-05
, 11:41
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Posts: 1,104 |
Thanked: 5,652 times |
Joined on Feb 2010
@ Holland
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#249
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looks 'a bit' hackish
filmed with my trusty old N9, software provided bij kimmoli!
filmed with my trusty old N9, software provided bij kimmoli!
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2014-01-05
, 23:58
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Posts: 4 |
Thanked: 12 times |
Joined on Dec 2013
@ Zagreb
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#250
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Originally Posted by dirkvl
Unfortunately, it's not what I meant to say.
The whole workings of the eeprom is very valuable in my eyes! If the eeprom could carry out commands, download files and install programs and deamons etc, all custom OH's can really be made plug&play.
This is a make or break condition for usage of the OH for the general public!
toh (as in toh-core kernel module) appears somewhere in the /sys fs. And in it's directory eeprom configuration items.
