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    Navigation: All forums > Usb > Message List > Message Post

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    From: "M Dennis" <mdennis97@h...>
    Date: Wed, 12 Feb 2003 22:08:03 -1000
    Subject: [usb] how host deal with the non 4-byte boundery data packet?
    Top

    hi,all
    
    Nominally,usb host read/write system memory in DWORD(4 byte)boundry.But the 
    packets received from device are always not the multiple of 4 bytes.For a 
    host controller,how to deal with this case.That's to say,if a device can 
    only send a maximum packet size 201 bytes large,the host controller can 
    write the former 200 bytes DWORD by DWORD,how to process the last byte?
    
    Regards
    Dennis
    
    
    
    
    
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