hi, i have been reading about usb device for the past 2 weeks and i did not find what i wanted and wondered if you could give me a tip on how or where i could find the info.
eia 232 (db 9) to usb because the mechanical spec is 4 wire for usb (1 ground, 1Vbus, D+ and D-) +/- 400mv between the two state and that eia 232 uses tx and rx (pin 2 and 3) i wounder how they manage to put the data on D+ and D- and then switch to Rx with the same two wire...(D+ D-) so just to make it clear... D+ D- is tx and rx at the same time so this is where i get lost. if you can clarify or help in any way thank you Bernard Deroy [EMAIL PROTECTED] To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
