[Bluez-devel] "Gather Write"/writev call and BlueZ driver...

[Bluez-devel] "Gather Write"/writev call and BlueZ driver...

[David Stockwell]

Not sure who to address this to (Marcel, maybe?), but does the Bluetooth 
driver support the writev call?

The reason for asking is that in AVRCP+Metadata I need to implement 
fragmentation in AVCTP.  Of course, I can just sling chunks of the big 
AVRCP packet into AVCTP buffers, pre-pending with the appropriate AVCTP 
header, but was wondering if there might be a more elegant solution 
(using writev to write the header, then the appropriate piece of the 
AVRCP packet).

David Stockwell
Frequency One 


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Re: [Bluez-devel] "Gather Write"/writev call and BlueZ driver...

[Marcel Holtmann]

Hi David,

> Not sure who to address this to (Marcel, maybe?), but does the Bluetooth 
> driver support the writev call?
> 
> The reason for asking is that in AVRCP+Metadata I need to implement 
> fragmentation in AVCTP.  Of course, I can just sling chunks of the big 
> AVRCP packet into AVCTP buffers, pre-pending with the appropriate AVCTP 
> header, but was wondering if there might be a more elegant solution 
> (using writev to write the header, then the appropriate piece of the 
> AVRCP packet).

go ahead and try it. I am not sure about writev, but in general it
should be supported since the kernel callback only expose sendmsg and
the rest it userspace API.

Regards

Marcel



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