* [PATCH 2.6.15-rc5] media/video/bttv : enhance ioctl debug
@ 2005-12-08 21:05 Philippe De Muyter
2005-12-12 10:36 ` Mauro Carvalho Chehab
0 siblings, 1 reply; 3+ messages in thread
From: Philippe De Muyter @ 2005-12-08 21:05 UTC (permalink / raw)
To: linux-kernel
This patch adds the current process name in the media/video/bttv ioctl debug.
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
---
--- linux/drivers/media/video/bttv-driver.c.orig 2005-08-29 01:41:01.000000000 +0200
+++ linux/drivers/media/video/bttv-driver.c 2005-12-08 20:59:45.000000000 +0100
@@ -2181,19 +2182,19 @@ static int bttv_do_ioctl(struct inode *i
int retval = 0;
if (bttv_debug > 1) {
+ printk("bttv%d: %s: ioctl 0x%x ", btv->c.nr, current->comm,
+ cmd);
switch (_IOC_TYPE(cmd)) {
case 'v':
- printk("bttv%d: ioctl 0x%x (v4l1, VIDIOC%s)\n",
- btv->c.nr, cmd, (_IOC_NR(cmd) < V4L1_IOCTLS) ?
+ printk("(v4l1, VIDIOC%s)\n",
+ (_IOC_NR(cmd) < V4L1_IOCTLS) ?
v4l1_ioctls[_IOC_NR(cmd)] : "???");
break;
case 'V':
- printk("bttv%d: ioctl 0x%x (v4l2, %s)\n",
- btv->c.nr, cmd, v4l2_ioctl_names[_IOC_NR(cmd)]);
+ printk("(v4l2, %s)\n", v4l2_ioctl_names[_IOC_NR(cmd)]);
break;
default:
- printk("bttv%d: ioctl 0x%x (???)\n",
- btv->c.nr, cmd);
+ printk("(???)\n");
}
}
if (btv->errors)
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 2.6.15-rc5] media/video/bttv : enhance ioctl debug
2005-12-08 21:05 [PATCH 2.6.15-rc5] media/video/bttv : enhance ioctl debug Philippe De Muyter
@ 2005-12-12 10:36 ` Mauro Carvalho Chehab
2005-12-14 16:42 ` Philippe De Muyter
0 siblings, 1 reply; 3+ messages in thread
From: Mauro Carvalho Chehab @ 2005-12-12 10:36 UTC (permalink / raw)
To: Philippe De Muyter; +Cc: linux-kernel, Linux and Kernel Video
Em Qui, 2005-12-08 às 22:05 +0100, Philippe De Muyter escreveu:
> This patch adds the current process name in the media/video/bttv ioctl debug.
Philippe,
I'm in doubt about the relevance of this patch. Why do you think it is
important to have process name at ioctl debug?
PS.: Please address these patches to V4L Mailing List.
>
> Signed-off-by: Philippe De Muyter <phdm@macqel.be>
>
> ---
>
> --- linux/drivers/media/video/bttv-driver.c.orig 2005-08-29 01:41:01.000000000 +0200
> +++ linux/drivers/media/video/bttv-driver.c 2005-12-08 20:59:45.000000000 +0100
> @@ -2181,19 +2182,19 @@ static int bttv_do_ioctl(struct inode *i
> int retval = 0;
>
> if (bttv_debug > 1) {
> + printk("bttv%d: %s: ioctl 0x%x ", btv->c.nr, current->comm,
> + cmd);
> switch (_IOC_TYPE(cmd)) {
> case 'v':
> - printk("bttv%d: ioctl 0x%x (v4l1, VIDIOC%s)\n",
> - btv->c.nr, cmd, (_IOC_NR(cmd) < V4L1_IOCTLS) ?
> + printk("(v4l1, VIDIOC%s)\n",
> + (_IOC_NR(cmd) < V4L1_IOCTLS) ?
> v4l1_ioctls[_IOC_NR(cmd)] : "???");
> break;
> case 'V':
> - printk("bttv%d: ioctl 0x%x (v4l2, %s)\n",
> - btv->c.nr, cmd, v4l2_ioctl_names[_IOC_NR(cmd)]);
> + printk("(v4l2, %s)\n", v4l2_ioctl_names[_IOC_NR(cmd)]);
> break;
> default:
> - printk("bttv%d: ioctl 0x%x (???)\n",
> - btv->c.nr, cmd);
> + printk("(???)\n");
> }
> }
> if (btv->errors)
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 2.6.15-rc5] media/video/bttv : enhance ioctl debug
2005-12-12 10:36 ` Mauro Carvalho Chehab
@ 2005-12-14 16:42 ` Philippe De Muyter
0 siblings, 0 replies; 3+ messages in thread
From: Philippe De Muyter @ 2005-12-14 16:42 UTC (permalink / raw)
To: Mauro Carvalho Chehab; +Cc: linux-kernel, Linux and Kernel Video
Mauro Carvalho Chehab wrote :
> Em Qui, 2005-12-08 às 22:05 +0100, Philippe De Muyter escreveu:
> > This patch adds the current process name in the media/video/bttv ioctl debug.
>
> Philippe,
>
> I'm in doubt about the relevance of this patch. Why do you think it is
> important to have process name at ioctl debug?
I needed to add that when testing my v4l2-compat patches with xawtv. It took
me a long time to discover that some ioctls were issued by xawtv itself,
others by v4l-conf and others yet by the xvideo/v4l module of my Xserver.
With the process name in the ioctl debugging, I think that my tests and
development would have been much faster.
Philippe
>
> PS.: Please address these patches to V4L Mailing List.
> >
> > Signed-off-by: Philippe De Muyter <phdm@macqel.be>
> >
> > ---
> >
> > --- linux/drivers/media/video/bttv-driver.c.orig 2005-08-29 01:41:01.000000000 +0200
> > +++ linux/drivers/media/video/bttv-driver.c 2005-12-08 20:59:45.000000000 +0100
> > @@ -2181,19 +2182,19 @@ static int bttv_do_ioctl(struct inode *i
> > int retval = 0;
> >
> > if (bttv_debug > 1) {
> > + printk("bttv%d: %s: ioctl 0x%x ", btv->c.nr, current->comm,
> > + cmd);
> > switch (_IOC_TYPE(cmd)) {
> > case 'v':
> > - printk("bttv%d: ioctl 0x%x (v4l1, VIDIOC%s)\n",
> > - btv->c.nr, cmd, (_IOC_NR(cmd) < V4L1_IOCTLS) ?
> > + printk("(v4l1, VIDIOC%s)\n",
> > + (_IOC_NR(cmd) < V4L1_IOCTLS) ?
> > v4l1_ioctls[_IOC_NR(cmd)] : "???");
> > break;
> > case 'V':
> > - printk("bttv%d: ioctl 0x%x (v4l2, %s)\n",
> > - btv->c.nr, cmd, v4l2_ioctl_names[_IOC_NR(cmd)]);
> > + printk("(v4l2, %s)\n", v4l2_ioctl_names[_IOC_NR(cmd)]);
> > break;
> > default:
> > - printk("bttv%d: ioctl 0x%x (???)\n",
> > - btv->c.nr, cmd);
> > + printk("(???)\n");
> > }
> > }
> > if (btv->errors)
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > Please read the FAQ at http://www.tux.org/lkml/
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2005-12-08 21:05 [PATCH 2.6.15-rc5] media/video/bttv : enhance ioctl debug Philippe De Muyter
2005-12-12 10:36 ` Mauro Carvalho Chehab
2005-12-14 16:42 ` Philippe De Muyter
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