Re: [PATCH v4] i2c: Add FTDI FT4222H USB I2C adapter
Francesco Lavra <[email protected]> Mon, 27 Jul 2026 10:07:08 +0200
| Newsgroups | org.kernel.vger.linux-i2c,org.kernel.vger.linux-kernel |
|---|---|
| Organization | BayLibre |
| Message-ID | <[email protected]> |
Another friendly ping On Thu, 2026-04-30 at 17:40 +0200, Francesco Lavra wrote: > Friendly ping > > On Wed, 2026-02-25 at 12:20 +0100, Francesco Lavra wrote: > > FT4222H exports a USB interface to operate as I2C bus master when set > > up > > (via the DCNF pins) in configuration mode 0 or 3. > > The USB communication protocol implemented by the FT4222 chip is not > > publicly documented, therefore the name assigned to the various defines > > used in the USB communication code is a semi-educated guess after > > sniffing > > USB traffic generated with the FTDI FT4222 userspace library. > > > > Signed-off-by: Francesco Lavra <[email protected]> >