Re: [Bluez-devel] 2. Re: Re: Re: Bluetooth SCO message sending (sco_send_frame)

[Marcel Holtmann <marcel@holtmann.org>]

Hi,

> In my case, there is some problem when I connect SCO over UART(h4).
> When I sent data to h4 interface, h4 make frame and btsco sent that
> frame to the SCO channel.
> The frame size from h4 interface is varied periodically and somtimes
> larger than MTU size so SCO channel drop several frames.
> 
> Of course I changed the MTU size using "hciconfig scomtu" command but it
> is not effective at all.

this command is useless.

> Now, I tested the problem using samsung module based on CSR bluecore
> chipset.
> However, there is no problem if I use SCO over USB because the frame
> size from USB is always same & smaller than MTU.

As I told you, the kernel will tell you the MTU size you have to use and
then you must segment and reassembly in your code.

Regards

Marcel




-------------------------------------------------------
SF.Net email is Sponsored by the Better Software Conference & EXPO
September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices
Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA
Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf
_______________________________________________
Bluez-devel mailing list
Bluez-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bluez-devel