Re: Help with talking to a device

[Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>]

On Wed, 25 Jul 2007, David Hooker wrote:

> Timeout is 10ms - the device's protocol spec defines it.
> 
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0040  1x 64 bytes
>         bInterval              10

You mean bInterval?  That's not a timeout; it's a polling interval.

The timeout I was referring to is the argument you specify in your call 
to the libusb wrapper.

Alan Stern


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