Messages in this thread | | | Date | Fri, 22 Sep 2023 04:32:41 +0000 | From | Rahul Rameshbabu <> | Subject | Re: [PATCH v7] HID: mcp2200: added driver for GPIOs of MCP2200 |
| |
On Thu, 21 Sep, 2023 18:49:28 +0200 "Johannes Roith" <johannes@gnu-linux.rocks> wrote: > Added a gpiochip compatible driver to control the 8 GPIOs of > the MCP2200 by using the HID interface. > > Using GPIOs with alternative functions (GP0<->SSPND, GP1<->USBCFG, > GP6<->RXLED, GP7<->TXLED) will reset the functions, if set (unset by > default). > > The driver was tested while also using the UART of the chip. Setting > and reading the GPIOs has no effect on the UART communication. However, > a reset is triggered after the CONFIGURE command. If the GPIO Direction > is constantly changed, this will affect the communication at low baud > rates. This is a hardware problem of the MCP2200 and is not caused by > the driver. > > Signed-off-by: Johannes Roith <johannes@gnu-linux.rocks> > ---
Reviewed-by: Rahul Rameshbabu <sergeantsagara@protonmail.com>
| |