On Mon, May 13, 2013 at 06:58:37AM +0200, Frederik Schmid wrote:
Ming,
The ehci controller is bogged down because the frames from the camera and
other stuff are being relayed over ethernet.
Why do the two have any relation to each other, with the exception of
possible CPU usage? Are they
On Monday 13 May 2013 05.01.01 Greg KH wrote:
Why do the two have any relation to each other, with the exception of
possible CPU usage? Are they sharing an interrupt and that is somehow a
problem?
They don't have any relation. The reason why we're trying to use the musb
controller is so that
On Mon, May 13, 2013 at 02:23:55PM +0200, Frederik Schmid wrote:
On Monday 13 May 2013 05.01.01 Greg KH wrote:
Why do the two have any relation to each other, with the exception of
possible CPU usage? Are they sharing an interrupt and that is somehow a
problem?
They don't have any
On Mon, May 13, 2013 at 12:58 PM, Frederik Schmid
frederik.sch...@rubico.se wrote:
Ming,
The ehci controller is bogged down because the frames from the camera and
other stuff are being relayed over ethernet.
If you mean usb camera and usb ethernet need to be used at the same
time, it might
be
On Monday 13 May 2013 05.44.22 Greg KH wrote:
On Mon, May 13, 2013 at 02:23:55PM +0200, Frederik Schmid wrote:
On Monday 13 May 2013 05.01.01 Greg KH wrote:
Why do the two have any relation to each other, with the exception of
possible CPU usage? Are they sharing an interrupt and that is
Hi Frederik,
On Fri, May 10, 2013 at 2:22 PM, Frederik Schmid
frederik.sch...@rubico.se wrote:
Hi Ruslan,
Thanks for the tips! A few comments below:
On Friday 10 May 2013 13.54.53 Ruslan Bilovol wrote:
Hello Frederic,
On Fri, May 10, 2013 at 12:54 PM, Frederik Schmid
On Monday 13 May 2013 20.46.40 Ming Lei wrote:
On Mon, May 13, 2013 at 12:58 PM, Frederik Schmid
frederik.sch...@rubico.se wrote:
Ming,
The ehci controller is bogged down because the frames from the camera and
other stuff are being relayed over ethernet.
If you mean usb camera and
On Mon, May 13, 2013 at 9:00 PM, Frederik Schmid
frederik.sch...@rubico.se wrote:
On Monday 13 May 2013 20.46.40 Ming Lei wrote:
On Mon, May 13, 2013 at 12:58 PM, Frederik Schmid
frederik.sch...@rubico.se wrote:
Ming,
The ehci controller is bogged down because the frames from the camera
Ming,
The ehci controller is bogged down because the frames from the camera and
other stuff are being relayed over ethernet.
/Frederik
On Friday 10 May 2013 23.24.32 Ming Lei wrote:
Why do you think it's bogged down with ethernet? The ethernet throughput
can go beyond 90Mbps on
Well, my conclusion is that this setup, IDS-camera + musb, is horribly
sensitive to interrupt latency.
If the musb-interrupt is blocked for ~100us the pipe is stalled. Most of the
interrupts on my target were routed to CPU0 while CPU1 had few.
When I re-route the musb interrupts to CPU1
Hello Frederic,
On Fri, May 10, 2013 at 12:54 PM, Frederik Schmid
frederik.sch...@rubico.se wrote:
Well, my conclusion is that this setup, IDS-camera + musb, is horribly
sensitive to interrupt latency.
If the musb-interrupt is blocked for ~100us the pipe is stalled. Most of the
interrupts on
Hi Ruslan,
Thanks for the tips! A few comments below:
On Friday 10 May 2013 13.54.53 Ruslan Bilovol wrote:
Hello Frederic,
On Fri, May 10, 2013 at 12:54 PM, Frederik Schmid
frederik.sch...@rubico.se wrote:
Well, my conclusion is that this setup, IDS-camera + musb, is horribly
On Fri, May 10, 2013 at 07:26:35AM +0200, Frederik Schmid wrote:
Hi Greg,
The kernel is based on 3.4.11 from omapzoom.org (ti-ubuntu-3.4-1487) with
Variscite BSP patches from:
http://www.variwiki.com/index.php?title=VAR-SOM-OM44_-_Ubuntu_Precise
Then I would ask for support from the
On Fri, May 10, 2013 at 1:26 PM, Frederik Schmid
frederik.sch...@rubico.se wrote:
Hi Greg,
The kernel is based on 3.4.11 from omapzoom.org (ti-ubuntu-3.4-1487) with
Variscite BSP patches from:
http://www.variwiki.com/index.php?title=VAR-SOM-OM44_-_Ubuntu_Precise
I was expecting 200-250Mbps
Hi,
I'm developing a camera application on a TI OMAP4460. I have a cmos usb-camera
from IDS (UI-1551-LE-C-HQ) connected to the OTG-port (musb as host) on the
OMAP.
I get very poor frame rates with this setup reliably. The throughput rate is
~50-70Mbps. (1600x1200,8bpp,3-5fps)
I uploaded a
On Thu, May 09, 2013 at 10:44:05AM +0200, Frederik Schmid wrote:
Hi,
I'm developing a camera application on a TI OMAP4460. I have a cmos
usb-camera
from IDS (UI-1551-LE-C-HQ) connected to the OTG-port (musb as host) on the
OMAP.
I get very poor frame rates with this setup reliably.
Hi Greg,
The kernel is based on 3.4.11 from omapzoom.org (ti-ubuntu-3.4-1487) with
Variscite BSP patches from:
http://www.variwiki.com/index.php?title=VAR-SOM-OM44_-_Ubuntu_Precise
I was expecting 200-250Mbps which is entirly possible on the same chip using
its ehci-controller. musb seems to
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