[sane-devel] [RFC] additional sanei_usb API to queue multiple URBs asynchronly

[René Rebe]

Hi all,

I currently review how to further improve the SANE/Avision backend to
get to the scanners maximal thruput, e.g. what the Windows driver
get's out of those devices.

The 16kB buffer of the Linux usbfs devio looks like a showstopper and
the kernel people indicate it is not likely to be removed / resolved easily or
soon.

Another option would be to queue more URBs and handle the completion
asynchonously. Would anyone veto when I further extend the API with
async flavours?

Yours,

-- 
René Rebe - Rubensstr. 64 - 12157 Berlin (Europe / Germany)
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