Hi everyone,
I'm capturing some USB traffic from a smart card reader and I am wondering what each field of the URB (USB Request Block) means. In particular, I can see the following fields in a trace:
- URB id: 0x...
- URB type: URB_SUBMIT('S')
- URB transfer type: URB_BULK (0x...)
- URB bus id: 1
- URB sec: < number >
- URB usec: < number >
- URB status: Operation now in progress...
- URB length: 0
I can imagine what some of them mean, but "sec" and "usec" in particular are a mistery to me.
Thanks <3
