* tm6010 : strange i2c
@ 2009-01-29 22:51 matthieu castet
0 siblings, 0 replies; only message in thread
From: matthieu castet @ 2009-01-29 22:51 UTC (permalink / raw)
To: linux-media, Mauro Carvalho Chehab
Hi,
I am trying to make work my hauppauge HVR900H, and I start looking at
http://linuxtv.org/hg/~mchehab/tm6010/ drivers and windows usb trace.
After some experiment I found that the i2c is very strange :
* for the zl10353 demodulator, the register read only seems to work if
the register address is odd and we read at least 2 bytes[1]. And the
windows driver seems to really do that according usb trace (read always
2 bytes at odd address).
* the windows driver read the eeprom in the strange way : it use
REQ_14_SET_GET_I2C_WR2_RDN, but setting the offset in the high byte of
wIndex. And it does 16 bytes read, 1 bytes read for reading again the
last 16th byte, and continue 16 bytes read, 1 byte read.
Did the people that worked on the tm6000 driver saw that weird i2c ?
Matthieu
[1]
Doing REQ_16_SET_GET_I2C_WR1_RDN on the demodulator with different
register address and read size.
0051: 00
------
0051: 00
------
0052: 00
------
0050: 00
------
004f: 00
------
0050: 00
------
0051: 44 46
------
0051: 44 46
------
0052: 46 46
------
0050: 46 46
------
004f: 46 0c
------
0050: 0c 0c
------
0051: 44 46 15 0f
------
0051: 44 46 15 0f
------
0052: 0f 0f 00 00
------
0050: 00 00 00 00
------
004f: 00 0c 44 46
------
0050: 46 46 00 00
------
0051: 44 46 15 0f 00 00 00 00
------
0051: 44 46 15 0f 00 00 00 00
------
0052: 00 00 00 00 00 00 00 00
------
0050: 00 00 00 00 00 00 00 00
------
004f: 00 0c 44 46 15 0f 00 00
------
0050: 00 00 00 00 00 00 00 00
------
0051: 44 46 15 0f 00 00 00 00 00 48 00 75 0d 0d 0d 00
------
0051: 44 46 15 0f 00 00 00 00 00 48 00 75 0d 0d 0d 00
------
0052: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
------
0050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
------
004f: 00 0c 44 46 15 0f 00 00 00 00 00 48 00 75 0d 0d
------
0050: 0d 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00
------
0051: 44 46 15 0f 00 00 00 00 00 48 00 75 0d 0d 0d 00
0061: 4d 0a 0f 0f 0f 0f c2 00 00 80 00 00 00 00 00 00
------
0051: 44 46 15 0f 00 00 00 00 00 48 00 75 0d 0d 0d 00
0061: 4d 0a 0f 0f 0f 0f c2 00 00 80 00 00 00 00 00 00
------
0052: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0062: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
------
0050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
------
004f: 00 0c 44 46 15 0f 00 00 00 00 00 48 00 75 0d 0d
005f: 0d 00 4d 0a 0f 0f 0f 0f c2 00 00 80 00 00 00 00
------
0050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
------
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2009-01-29 22:51 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-01-29 22:51 tm6010 : strange i2c matthieu castet
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.