A: http://en.wikipedia.org/wiki/Top_post Q: Were do I find info about this thing called top-posting? A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? A: No. Q: Should I include quotations after my reply? http://daringfireball.net/2007/07/on_top On Wed, Nov 03, 2021 at 08:23:38AM +0100, Jochen Mades wrote: > Hi Greg, > > thanks for your fast reply. I checked the sources you mentioned below, that helps a bit.. > > Could you please give me some more background what you mean with your question: > > You could do much the same in the pl011_rs485_tx_start() function when > > SER_RS485_RX_DURING_TX and SER_RS485_RTS_ON_SEND are checked, right? > > Is there already a concept for RS485 drivers? Yes, RS485 drivers control lines like you are looking for in order to properly handle the protocol requirements. > ...or where to find "pl011_rs485_tx_start()"? Look in the kernel source tree for that function, that's in the driver you were looking to modify, right? thanks, greg k-h
