urb packetizing

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Hi list,

I went through lots of documents on USB.
Please correct me if my below understanding is wrong and please provide pointers.

1. My application wants to pass some GBs of data to USB device.
2. My mass storage class specific drivers can make URBs of some fix size and can submit to usbcore. Any min/max size ? Or I can create just one URB and submit. 3. USB host driver will convert that URB into different packets and will transmit to USB device. The packet size will be as defined in USB spec and as listed in protocol spec and also depends on what type of transfers are happening. 4. USB host driver will call completion only iff all packets are transmitted and thus one URB is transmitted correctly. Yes?

--
Thanks,
Viral Mehta,
Embedded Software Engineer,
Tel. No. 91 79 26563705, Ext. 423
www.einfochips.com <http://www.einfochips.com>
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