Re: [PATCH v2 1/2] Revert "USB: serial: ch341: add new Product ID for CH341A"

[Johan Hovold]

On Thu, Apr 22, 2021 at 07:28:51PM -0500, Frank Zago wrote:
> From: frank zago <frank@xxxxxxxx>
> 
> The 0x5512 USB PID is for the I2C/GPIO/SPI interfaces. UART is still
> present but only the TX and RX pins are available; DTS, DTR, ... are
> used for other things. Remove the PID, and let a I2C driver bind to
> it.
> 
> Existing CH341 boards usually have physical jumpers to switch between
> the 3 modes.
> 
> This reverts commit 46ee4abb10a07bd8f8ce910ee6b4ae6a947d7f63.

You can't just revert something which people clearly depend on and
therefore added to the kernel in the first place.

Can you reprogram the device with a newly allocated PID to be used for
i2c-only instead?
 
Johan