[linux-usb-devel] Dynamic USB buffer sizes (Was: Option driver enhancement)

Oliver Neukum oliver at neukum.org
Thu Oct 4 10:00:19 UTC 2007

Am Donnerstag 04 Oktober 2007 schrieb Indan Zupancic:
> E.g. some mechanism where the buffer size and buffer count is chosen
> dynamically depending on how fast the device turns out to be, and some
> latency constraints. For number of buffers it's easy to do, e.g. new buffers
> could be allocated up to nr_bufs_in_flight * 2. Doing the buffer sizes

How do you define "in flight"? You can submit any number of URBs
to which buffers correspond. You'd have to measure the actual throughput.


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