On Tue, May 17, 2022 at 07:42:46PM +0100, linuxkernel wrote: > hello > > I, looking at writing a kernel driver for the Texas instruments > TPS92662A/TPS92663A > > which uses a "UART bus" e.g > > |-----------| |-----------| |-----------| |-----------| | | | TPS92662A | | > TPS92662A | | TPS92663A | | UART | | -Q1 | | -Q1 | | -Q1 | | | | | | | | | > |-----------| |-----------| |-----------| |-----------| | | | | | | | | | | > | | ------------------------------------------------------------------- > and control communications by specific sequencing. > configuring this appears to require being able to pull RX Low > > The MCU unit can reset the device UART and protocol state machine at any > > time by holding the RX input low for a period of at least 12 bit times > > (16 × 12 CLK periods). > practically i can always pull RX low via other means, but if the UART can do > this it would be better and be more generic. How can your UART do that in a generic way? thanks, greg k-h
