I am trying to get the CCDC driver running and talking to a M9T001 image
sensor hooked up on the DVEVM DM355.I have a custom pcb that adapts the sensor
to the J30，J31 interface using thesame level translators that are used for the
tv decoder chip on the board. Ihave the CAPTURE_EN pulled high to disable the
on-board tv chip.I compiled the CCDC driver into the kernel as a static
module.I add the following to the bootargs:bootargs=console=ttyS0,115200n8
noinitrd ip=dhcp root=/dev/nfs rw
nfsroot=192.168.0.81:/home/xiao/workdir/filesys mem=116M
v4l2_video_capture=:device=MT9T001 When i boot the image I get a long list of
failed I2C actions (shown below)Does anyone know what could cause this
problem?Maybe it is an I2C address problem, or some other communication
problem,although I see with the scope that there is definitely I2C data coming
intothe M9T001.Any help would be appreciated.Thanks,-winkyxiao i2c /dev entries
driverLinux video capture interface: v1.00Registering platform device 'vpfe.1'.
Parent at platformDaVinci I2C WARNING: i2c: AL detectedDaVinci I2C WARNING:
i2c: cmd complete failed: complete = 0x0, icstr =
0x410DaVinci I2C WARNING: i2c: AL detected ERROR: i2c readback failed, val =
32, readval = 18, reg = 96 ERROR: i2c readback failed, val = 32, readval = 16,
reg = 97 ERROR: i2c readback failed, val = 32, readval = 26, reg = 99 ERROR:
i2c readback failed, val = 32, readval = 25, reg = 100vpfe vpfe.1: DaVinci v4l2
capture driver V1.0 loaded -------------- next part --------------
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