include/linux/w1.h

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
12  * struct w1_reg_num - broken out slave device id
49  * struct w1_slave - holds a single slave device on the bus
58  * @master: bus which this slave is on
74 	struct w1_master	*master;  member
84  * struct w1_bus_master - operations available on a bus master
88  * @read_bit: Sample the line level @return the level read (0 or 1)
90  * @write_bit: Sets the line level
92  * @touch_bit: the lowest-level function for devices that really support the
93  * 1-wire protocol.
94  * touch_bit(0) = write-0 cycle
95  * touch_bit(1) = write-1 / read cycle
111  * @reset_bus: long write-0 with a read for the presence pulse detection
112  * @return -1=Error, 0=Device present, 1=No device present
114  * @set_pullup: Put out a strong pull-up pulse of the specified duration.
115  * @return -1=Error, 0=completed
122  * creating names, which then give a connection to the w1 master
124  * Note: read_bit and write_bit are very low level functions and should only
125  * be used with hardware that doesn't really support 1-wire operations,
161  * enum w1_master_flags - bitfields used in w1_master.flags
171  * struct w1_master - one per bus master
172  * @w1_master_entry:	master linked list
184  * @search_count:	number of automatic searches to run, -1 unlimited
204 	 * searched for and async commands added while the master has
243 int w1_add_master_device(struct w1_bus_master *master);
244 void w1_remove_master_device(struct w1_bus_master *master);
247  * struct w1_family_ops - operations for a family type
261  * struct w1_family - reference counted family structure.
283  * module_w1_family() - Helper macro for registering a 1-Wire families
286  * Helper macro for 1-Wire families which do not do anything special in module