A subset of CH341 devices does not support all features, namely the prescaler is limited to a reduced precision and there is no support for sending a RS232 break condition. These devices can usually be identified by an imprint of "340" on the turquoise-colored plug. They're also sometimes called "HL340", hence the terminology in this series and driver. This series adds detection of these devices, adjusts the divisor/prescaler setup and implements a simulated break condition. Michael Hanselmann (4): ch341: Name more registers ch341: Detect HL340 variant ch341: Limit prescaler on HL340 variant ch341: Simulate break condition on HL340 variant drivers/usb/serial/ch341.c | 196 +++++++++++++++++++++++++++++++++---- 1 file changed, 176 insertions(+), 20 deletions(-) -- 2.20.1
