add led

hc

2024-05-10 10ebd8556b7990499c896a550e3d416b444211e6

 kernel/include/uapi/linux/serial.h
..
..
@@ -132,4 +132,21 @@
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 					   are a royal PITA .. */
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 };
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+/*
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+ * Serial interface for controlling ISO7816 settings on chips with suitable
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+ * support. Set with TIOCSISO7816 and get with TIOCGISO7816 if supported by
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+ * your platform.
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+ */
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+struct serial_iso7816 {
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+	__u32	flags;			/* ISO7816 feature flags */
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+#define SER_ISO7816_ENABLED		(1 << 0)
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+#define SER_ISO7816_T_PARAM		(0x0f << 4)
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+#define SER_ISO7816_T(t)		(((t) & 0x0f) << 4)
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+	__u32	tg;
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+	__u32	sc_fi;
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+	__u32	sc_di;
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+	__u32	clk;
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+	__u32	reserved[5];
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+};
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+
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 #endif /* _UAPI_LINUX_SERIAL_H */