On 4/4/07, Alan Stern <[EMAIL PROTECTED]> wrote:
> On Wed, 4 Apr 2007, nesta wrote:
>
> > hi all,
> > i want to know what is the max usb packet size that i can send over an usb
> > cable connected between a computer Host and the omap kit.
> >
> > note that this kit is full speed device not support a high speed ?
> > could it be 256 Bytes for example?or what?
>
> 64 bytes for Bulk, Control, and Interrupt. 1023 bytes for Isochronous
> (unless the OMAP has its own restrictions).
are all of these numbers in bytes?
if so, assume that i m using bulk endpoint and i have a file of size of 5*64 B
what is faster is to write data in 5 times each of 64 B size or
is to write data in 1 time of 5*64 B?
please tell me why any choice would be faster if u know?
also i m very surprised that the max usb packet size of my host computer is 2?
does not this seem to me too slow?i mean how it can support fast data transfer?
thanks in advance
On 4/4/07, Wael Adel <[EMAIL PROTECTED]> wrote:
> On 4/4/07, Alan Stern <[EMAIL PROTECTED]> wrote:
> > On Wed, 4 Apr 2007, nesta wrote:
> >
> > > hi all,
> > > i want to know what is the max usb packet size that i can send over an
> usb
> > > cable connected between a computer Host and the omap kit.
> > >
> > > note that this kit is full speed device not support a high speed ?
> > > could it be 256 Bytes for example?or what?
> >
> > 64 bytes for Bulk, Control, and Interrupt. 1023 bytes for Isochronous
> > (unless the OMAP has its own restrictions).
>
> are all of these numbers in bytes?
> if so, assume that i m using bulk endpoint and i have a file of size of 5*64
> B
>
> what is faster is to write data in 5 times each of 64 B size or
> is to write data in 1 time of 5*64 B?
>
> please tell me why any choice would be faster if u know?
>
> also i m very surprised that the max usb packet size of my host computer is
> 2?
> does not this seem to me too slow?i mean how it can support fast data
> transfer?
>
> thanks in advance
>
> > Alan Stern
> >
> >
>
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