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[PATCH] w1: Userspace communication protocol over connector.

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There are three types of messages between w1 core and userspace:
1. Events. They are generated each time new master or slave device found
	either due to automatic or requested search.
2. Userspace commands. Includes read/write and search/alarm search comamnds.
3. Replies to userspace commands.

From: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Evgeniy Polyakov
2006-03-23 19:11:58 +03:00
committed by Greg Kroah-Hartman
parent 81f6075ebc
commit 12003375ac
12 changed files with 448 additions and 135 deletions
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18
drivers/w1/w1_io.c
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@@ -26,7 +26,6 @@
#include "w1.h"
#include "w1_log.h"
#include "w1_io.h"
static int w1_delay_parm = 1;
module_param_named(delay_coef, w1_delay_parm, int, 0);
@@ -268,13 +267,13 @@ u8 w1_calc_crc8(u8 * data, int len)
return crc;
}
void w1_search_devices(struct w1_master *dev, w1_slave_found_callback cb)
void w1_search_devices(struct w1_master *dev, u8 search_type, w1_slave_found_callback cb)
{
dev->attempts++;
if (dev->bus_master->search)
dev->bus_master->search(dev->bus_master->data, cb);
dev->bus_master->search(dev->bus_master->data, search_type, cb);
else
w1_search(dev, cb);
w1_search(dev, search_type, cb);
}
/**
@@ -300,13 +299,4 @@ int w1_reset_select_slave(struct w1_slave *sl)
return 0;
}
EXPORT_SYMBOL(w1_touch_bit);
EXPORT_SYMBOL(w1_write_8);
EXPORT_SYMBOL(w1_read_8);
EXPORT_SYMBOL(w1_reset_bus);
EXPORT_SYMBOL(w1_calc_crc8);
EXPORT_SYMBOL(w1_delay);
EXPORT_SYMBOL(w1_read_block);
EXPORT_SYMBOL(w1_write_block);
EXPORT_SYMBOL(w1_search_devices);
EXPORT_SYMBOL(w1_reset_select_slave);
EXPORT_SYMBOL_GPL(w1_calc_crc8);