Hi Johan, > I think it's right to keep them as in the current version of the patch > (i.e. active high) which is accordance with the datasheet, but if > possible you should verify the levels when using hardware flow control > to be certain that the polarity is not inverted when enabling hardware > flow control. It seems to me that CTSRTS flow control is not implemented in the device I have. I tried to send lots of data to cause level change of the RTS signal with no success. Also I tried to: 1. open port; 2. disable CTSRTS flow control; 3. set RTS to a specific level; 4. enable CTSRTS flow control; 5. send some data. I tried the sequence above with RTS set and reset, and I can conclude that step 4 doesn't affect RTS signal at all. Best regards, Maksim. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html