esp-hal 1.2.0

Bare-metal HAL for Espressif devices
Documentation 
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pub fn fs_common_init() {
    crate::peripherals::LPWR::regs().usb_conf().modify(|_, w| {
        w.sw_hw_usb_phy_sel().set_bit();
        w.sw_usb_phy_sel().set_bit()
    });
}