bluetooth pand and isp116x problems partly solved
hello List,
i wrote to the list a long time ago, because I had the problem, that a pand connection didn't work. And after trying this the usb dongle produced only timeouts.
You pointed me to the usb host controller that could be the problem and of course you ware right.
I found out that the host controller driver needed a 4 msec deelay in a function hc_submit_urb to work properly.
But sadly I don't understand WHY this helps. I believe my solution is only a cure for the symptom not for the cause.
And it's not the right playe for a delay in this function, I think.
What I would like to know now:
Why is pand (or dund or ppp over rfcomm) so critical? l2ping gave no errors, and also other usb tasks were ok.
Signature · 13 lines
regards, Christoph ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl _______________________________________________ Bluez-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/bluez-users
Marcel Holtmann
maintainerHi Christoph,
Quoted 4 lines
i wrote to the list a long time ago, because I had the problem, that a pand connection didn't work. And after trying this the usb dongle produced only timeouts.
Quoted 8 lines
You pointed me to the usb host controller that could be the problem and of course you ware right.
I found out that the host controller driver needed a 4 msec deelay in a function
hc_submit_urbto work properly.
But sadly I don't understand WHY this helps. I believe my solution is only a cure for the symptom not for the cause.
And it's not the right playe for a delay in this function, I think.
ask the host controller driver maintainer about that and move this question to the USB devel mailing list. Include the patch that you use to make it working.
Quoted 3 lines
What I would like to know now:
Why is pand (or dund or ppp over rfcomm) so critical? l2ping gave no errors, and also other usb tasks were ok.
The HCI commands and events are control or interrupt URB and for all other higher protocols based on L2CAP the bulk interrupts are used and maybe our current URB handling in the hci_usb driver is not perfect.
Regards
Marcel
-------------------------------------------------------
This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more
http://productguide.itmanagersjournal.com/guidepromo.tmpl
_______________________________________________
Bluez-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/bluez-users