support multi port api for device
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@@ -31,11 +31,3 @@
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## CH32
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- CH32F10x、CH32V10x
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## Before Use
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Your should implement `usb_dc_low_level_init` and `usb_dc_low_level_deinit`.
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- Enable or disable USB clock and set USB clock for 48M.
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- Enable or disable gpio and gpio clk for usb dp and dm.
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- Enable or disable usb irq
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