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serial: Convert serial_rs485 to kernel doc

Convert struct serial_rs485 comments to kernel doc format and include it into documentation.

Ilpo Järvinen committed 4 years ago

Commit 6dd07781 parent 109a9512 files · +43 −25Browse files

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include/uapi/linux/serial.h+36−19
@@ -107,33 +107,50 @@ struct serial_icounter_struct { · 106 unmodified lines
107107 int reserved[9];
108108 };
109109
110−/*
110+/**
111+ * struct serial_rs485 - serial interface for controlling RS485 settings.
112+ * @flags: RS485 feature flags.
113+ * @delay_rts_before_send: Delay before send (milliseconds).
114+ * @delay_rts_after_send: Delay after send (milliseconds).
115+ * @addr_recv: Receive filter for RS485 addressing mode
116+ * (used only when %SER_RS485_ADDR_RECV is set).
117+ * @addr_dest: Destination address for RS485 addressing mode
118+ * (used only when %SER_RS485_ADDR_DEST is set).
119+ * @padding0: Padding (set to zero).
120+ * @padding1: Padding (set to zero).
121+ * @padding: Deprecated, use @padding0 and @padding1 instead.
122+ * Do not use with @addr_recv and @addr_dest (due to
123+ * overlap).
124+ *
111125 * Serial interface for controlling RS485 settings on chips with suitable
112126 * support. Set with TIOCSRS485 and get with TIOCGRS485 if supported by your
113127 * platform. The set function returns the new state, with any unsupported bits
114128 * reverted appropriately.
129+ *
130+ * The flag bits are:
131+ *
132+ * * %SER_RS485_ENABLED - RS485 enabled.
133+ * * %SER_RS485_RTS_ON_SEND - Logical level for RTS pin when sending.
134+ * * %SER_RS485_RTS_AFTER_SEND - Logical level for RTS pin after sent.
135+ * * %SER_RS485_RX_DURING_TX - Full-duplex RS485 line.
136+ * * %SER_RS485_TERMINATE_BUS - Enable bus termination (if supported).
137+ * * %SER_RS485_ADDRB - Enable RS485 addressing mode.
138+ * * %SER_RS485_ADDR_RECV - Receive address filter (enables @addr_recv). Requires %SER_RS485_ADDRB.
139+ * * %SER_RS485_ADDR_DEST - Destination address (enables @addr_dest). Requires %SER_RS485_ADDRB.
115140 */
116−
117141 struct serial_rs485 {
118− __u32 flags; /* RS485 feature flags */
119−#define SER_RS485_ENABLED (1 << 0) /* If enabled */
120−#define SER_RS485_RTS_ON_SEND (1 << 1) /* Logical level for
121− RTS pin when
122− sending */
123−#define SER_RS485_RTS_AFTER_SEND (1 << 2) /* Logical level for
124− RTS pin after sent*/
142+ __u32 flags;
143+#define SER_RS485_ENABLED (1 << 0)
144+#define SER_RS485_RTS_ON_SEND (1 << 1)
145+#define SER_RS485_RTS_AFTER_SEND (1 << 2)
125146 #define SER_RS485_RX_DURING_TX (1 << 4)
126−#define SER_RS485_TERMINATE_BUS (1 << 5) /* Enable bus
127− termination
128− (if supported) */
129−
130−/* RS-485 addressing mode */
131−#define SER_RS485_ADDRB (1 << 6) /* Enable addressing mode */
132−#define SER_RS485_ADDR_RECV (1 << 7) /* Receive address filter */
133−#define SER_RS485_ADDR_DEST (1 << 8) /* Destination address */
147+#define SER_RS485_TERMINATE_BUS (1 << 5)
148+#define SER_RS485_ADDRB (1 << 6)
149+#define SER_RS485_ADDR_RECV (1 << 7)
150+#define SER_RS485_ADDR_DEST (1 << 8)
134151
135− __u32 delay_rts_before_send; /* Delay before send (milliseconds) */
136− __u32 delay_rts_after_send; /* Delay after send (milliseconds) */
152+ __u32 delay_rts_before_send;
153+ __u32 delay_rts_after_send;
137154
138155 /* The fields below are defined by flags */
139156 union {