>>>>> "H" == Hans Verkuil <[EMAIL PROTECTED]> writes:

 H> On Tuesday 18 December 2007 06:15:51 A. P. Kennedy wrote:
 >> >>>>> "H" == Hans Verkuil <[EMAIL PROTECTED]> writes:
 >> 
 H> On Monday 17 December 2007 02:43:44 A. P. Kennedy wrote:
 >> >> I have been having this problem with the latest development >>
 >> snapshots. Really started with kernel 2.6.22 and the ivtv driver
 >> >> in the kernel.
 >> >>
 >> >> Currently using kernel - 2.6.23.11 v4l-dvd - updated 12/16/2007
 >> >> to lastest master repository. This version also contains the >>
 >> ivtvfb module.
 >> >>
 >> >> mythtv - latest svn update from today 12/16/2007.
 >> >>
 >> >> I have started having the following errors.
 >> >>
 >> >> i2c-adapter i2c-3: sendbytes: error - bailout. msp3400 3-0040:
 >> >> I/O error #0 (read 0x10/0x200) i2c-adapter i2c-3: sendbytes: >>
 >> error - bailout. msp3400 3-0040: I/O error #0 (read 0x10/0x200) >>
 >> i2c-adapter i2c-3: sendbytes: error - bailout. msp3400 3-0040: >>
 >> I/O error #0 (read 0x10/0x200) i2c-adapter i2c-2: sendbytes: >>
 >> error - bailout. msp3400 2-0040: I/O error #0 (read 0x10/0x200) >>
 >> i2c-adapter i2c-3: sendbytes: error - bailout. msp3400 3-0040: >>
 >> I/O error #0 (read 0x10/0x200)
 >> >>
 >> >> What does this error mean?
 >> >>
 >> >> When this error occurs I lose the sound on the recording, and
 >> >> wife gets mad ;-)
 >> >>
 >> >> It is strange because this error does not happen all the time,
 >> >> and the next recording usually is okay.
 >> >>
 >> >> I did a search of the mailing list, and one user upgrade to the
 >> >> lastest v4l-dvb to resolve this problem. However, no luck here.
 >> >> Anything else I can try? Thanks for any help on this matter.
 >> 
 H> Just about the only thing that could cause this would be an i2c
 H> timing change. Use the v4l-dvb repository, edit file ivtv-i2c.c,
 H> search for this line:
 >>
 H> .udelay = 5,
 >>
 H> and replace the 5 with 10. Try again and see if this solves the
 H> problem. Please let me know the result.
 >>
 H> The i2c timings were changed to speed up the firmware load, but
 H> this might have introduced problems in this area.
 >>
 H> Regards,
 >>
 H> Hans
 >>
 H> _______________________________________________ ivtv-devel
 >> mailing H> list [email protected]
 H> http://ivtvdriver.org/mailman/listinfo/ivtv-devel
 >>  Thanks that did the trick. Usually this error would occur within
 >> 10-20 minutes after a recording would start. No error after
 >> recording for several hours tonight, and no problems with audio
 >> recordings have been noted.

 H> OK, good news. Can you try to use the values 6, 7, 8 and 9 as well
 H> and see until which value you still get errors? And I also like to
 H> know which msp chip you have (should be in the kernel log).

 H> Thanks,

 H>     Hans

msp chip is MSP4448G-A2

Here are the results: Between runs the computer was turned off
for 2-3 minutes.

.udelay = 6
i2c-adapter i2c-2: sendbytes: error - bailout.
msp3400 2-0040: I/O error #0 (read 0x10/0x200)

.udelay = 7
i2c-adapter i2c-2: sendbytes: error - bailout.
msp3400 2-0040: I/O error #0 (read 0x10/0x200)

.udelay = 8
no errors

.udelay = 9
no errors

.udelay = 10
no errors

Currently using .udelay = 8.

Hope this helps.

Alan


_______________________________________________
ivtv-devel mailing list
[email protected]
http://ivtvdriver.org/mailman/listinfo/ivtv-devel

Reply via email to