ESP32C3 USB pullup interferes with GPIO configuration

[BRA1L0R]

There's already code to disable the USB when setting up GPIO pins for gpio18 and gpio19, but there's no code to clear the pull-ups. They interfere in my design and i found that manually clearing the pullup / pulldown pins fixes everything.

peripherals.USB_DEVICE.conf0().write(|w| {
        w.usb_pad_enable()
            .clear_bit()
            .dm_pullup()
            .clear_bit()
            .dm_pulldown()
            .clear_bit()
            .dp_pullup()
            .clear_bit()
            .dp_pulldown()
            .clear_bit()
    });

This is an example of how I personally fixed the problem. It should be implemented here:

esp-hal/esp-hal/src/gpio.rs

Lines 619 to 624 in 8841d82

	#[cfg(esp32c3)]
	if GPIONUM == 18 || GPIONUM == 19 {
	unsafe { &*crate::peripherals::USB_DEVICE::PTR }
	.conf0()
	.modify(|_, w| w.usb_pad_enable().clear_bit());
	}

[MabezDev]

Thanks for pointing this out, this indeed looks like an oversight. Would you mind PRing a fix?