Re: [usb] USB 1.1 questions

[Ravi Kumar <ravikumar_vlsi@yahoo.co.in>]

hi vivek
The CRC algol everything will be taken care by the
hardware, uneed not take of that from device drivers
perspective.
all u need to do is to 
1)Schedule the transaction 
2)provide the lists for processing namely 
bulk,control,iso,interrupt list

regards]
Ravikumar


 --- Vivek  Kangralkar <vivek.kangralkar@ittiam.com>
wrote: > Hi,
> I am very new to USB. I am reading USB 1.1 specs
> from www.usb.org. 
> i have a basic question.
> 
> if i am using USB 1.1 & if i want to transfer data
> to/from device, do i need to take care of USB CRC,
> ACK, NAK, STALL etc? or USB itself will take care of
> it?
> do i need to implement CRC algorithms while writing
> device driver?
> 
> waiting for answers,
> Vivek
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