Re: NTSC Video on the 823

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Where did you find these files?

ftp://ftp.mvista.com/pub/Area51/embedded-planet/video.tgz



Matthel Locke wrote:

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chuck's code is based on a different i2c driver than the one in
8xx_io.   Unless Todd has the i2c driver developed by EP, it probably
won't work

The "patchVideo" file contains an I2c driver.  I did not load it, assuming
that the more recent version I currently use would be preferable and
compatible.  I will try recompiling with the "patch Video" version and see
if there is any change.

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Where is this "Open error -19" coming from?  There is lots more
code executed than your little snippet shows.

It could be from this code segment located in Vid823.c, I'm not sure what
this indicates.

/* open or close a file in kernel space... */
struct file *drvfopen(const char * filename, int flags, int mode)
{
    struct file *f;
    int error;

    f = filp_open(filename, flags, mode);
    error = PTR_ERR(f);
    if (IS_ERR(f))
    {
========>    printk("Open error %d\n",error);
        return 0;
    }
    return f;



thanks for the help!


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"Todd_Tomaino"@vnci.net wrote:

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Where did you find these files?

ftp://ftp.mvista.com/pub/Area51/embedded-planet/video.tgz

oh yeah, I guess i put it there:-)

Matthel Locke wrote:

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chuck's code is based on a different i2c driver than the one in
8xx_io.   Unless Todd has the i2c driver developed by EP, it probably
won't work

The "patchVideo" file contains an I2c driver.  I did not load it, assuming
that the more recent version I currently use would be preferable and
compatible.  I will try recompiling with the "patch Video" version and see
if there is any change.

yep, that is the problem.  the i2c driver in the kernel source doesn't
have write capablity.  which is why the open (below) fails.

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Where is this "Open error -19" coming from?  There is lots more
code executed than your little snippet shows.

It could be from this code segment located in Vid823.c, I'm not sure what
this indicates.

/* open or close a file in kernel space... */
struct file *drvfopen(const char * filename, int flags, int mode)
{
    struct file *f;
    int error;

    f = filp_open(filename, flags, mode);
    error = PTR_ERR(f);
    if (IS_ERR(f))
    {
========>    printk("Open error %d\n",error);
        return 0;
    }
    return f;

thanks for the help!

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