HI Dmitry: These changes would not affect all the behavior of the old IC, including all the TP functions THANKS JINGLE -----Original Message----- From: Dmitry Torokhov [mailto:dmitry.torokhov@xxxxxxxxx] Sent: Tuesday, May 26, 2020 12:17 PM To: Jingle.Wu Cc: linux-kernel@xxxxxxxxxxxxxxx; linux-input@xxxxxxxxxxxxxxx; phoenix@xxxxxxxxxx; dave.wang@xxxxxxxxxx; josh.chen@xxxxxxxxxx Subject: Re: [PATCH] Input: elantech - Remove read/write registers in attr. Hi Jingle, On Tue, May 26, 2020 at 10:22:46AM +0800, Jingle.Wu wrote: > New Elan IC would not be accessed with the specific regiters. What about older Elaan parts? We can't simply drop compatibility with older chips in newer kernels. Thanks. -- Dmitry
