Thanks for your inputs.
> > +/* Serial interfaces (I2C, SPI, UART) differ in interface subclass */
> > +enum cy_scb_modes {
> > + CY_USBS_SCB_DISABLED = 0,
> > + CY_USBS_SCB_UART = 1,
> > + CY_USBS_SCB_SPI = 2,
> > + CY_USBS_SCB_I2C = 3
>
> Why have you numbered these individually?
I have changed them as #define's now. These values are not arbitrary.
> > + /* Serial interfaces (I2C, SPI, UART) differ in interface subclass */
> > + switch (interface->cur_altsetting->desc.bInterfaceSubClass) {
> > + case CY_USBS_SCB_I2C:
> > + dev_info(&interface->dev, "using I2C interface\n");
> > + cyusbs23x_devs = cyusbs23x_i2c_gpio_devs;
> > + ndevs = ARRAY_SIZE(cyusbs23x_i2c_gpio_devs);
>
> Not sure I get this. Why do you have local variables for these instead of using
> them directly?
We are planning to support other protocols in future. To facilitate that, local variables are used.
> > + return 0;
> > +
> > +error:
> > + usb_put_dev(cyusbs->usb_dev);
>
> Isn't there a devm_* version of usb_set_intfdata()?
No.
Thanks,
Muthu
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