explain me about how usb communication work. packets. frames. pipes. headers
$10-30 USD
Publicado hace casi 6 años
$10-30 USD
Pagado a la entrega
Hello. i have sniffed usb communication to a some device.
got such result :
packet to usb device :
00 00 00 00 01 00 00 00 06 00 03 00 03 00 00 00 00 00 00 00 02 00 00 00 01 00 00 00 1F 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 53 42 43 A0 F8 33 70 24 00 00 00 80 00 06 12 00 00 00 24 00 00 00 00 00 00 00 00 00 00 00
reply from usb device : 00 03 00 00 00 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1F 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
packet to device : 00 00 00 00 01 00 00 00 07 00 03 00 03 00 00 00 01 00 00 00 01 00 00 00 00 00 00 00 24 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
reply from usb device : 00 03 00 00 00 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 24 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 55 53 42 20 20 20 20 20 44 6F 6E 67 6C 65 20 33 32 20 20 20 20 20 20 20 31 2E 30 30
as i understand here contain number of request, it lenght, data etc.
i see here something like header 49 bytes
i need someone explain me about it if you good in this
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