On Mon, Feb 07, 2022 at 02:08:23AM +0200, Dmytro Bagrii wrote: > This reverts commit 46ee4abb10a07bd8f8ce910ee6b4ae6a947d7f63. You forgot to cc: the author of that commit, why? Also forgot to cc: the maintainer of the driver/subsytem? > CH341A has three different modes of operation selectable either by > hardware pin connections or by external EEPROM configuration. Each > mode is represented by corresponding product ID: > > 0x5523: Asyncronous Serial Interface > 0x5584: Parallel Printer Interface > 0x5512: EPP/MEM Interface That does not corrispond with what Jan-Niklas said in the original commit. > > (See "5.3.Function configuration" in datasheet at wch-ic.com/downloads/CH341DS1_PDF.html) > > When CH341A is configured as EPP/MEM Interface it appears as 1a86:5512 and being mistakenly > handled by ch341 USB serial driver. > > It is possible to use CH341A in EPP/MEM mode only if ch341 module is blacklisted, but it must be > unblacklisted every time to use CH341A as a serial converter. Also obviously it is impossible > to use two CH341A boards in different modes simoultaneously. Please wrap your lines at 72 columns. thanks, greg k-h
