From ea7d8f65c865ebfa1d7cd67c360a87333ff013c1 Mon Sep 17 00:00:00 2001 From: Evgeniy Polyakov Date: Thu, 11 Aug 2005 17:27:49 +0400 Subject: [PATCH] w1: Added w1_reset_select_slave() - Resets the bus and then selects the slave by sending either a skip rom or a rom match. Patch from Ben Gardner Signed-off-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman --- drivers/w1/w1_therm.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) (limited to 'drivers/w1/w1_therm.c') diff --git a/drivers/w1/w1_therm.c b/drivers/w1/w1_therm.c index 2259f3d851f..2ed0e0f4826 100644 --- a/drivers/w1/w1_therm.c +++ b/drivers/w1/w1_therm.c @@ -176,15 +176,10 @@ static ssize_t w1_therm_read_bin(struct kobject *kobj, char *buf, loff_t off, si crc = 0; while (max_trying--) { - if (!w1_reset_bus (dev)) { + if (!w1_reset_select_slave(sl)) { int count = 0; - u8 match[9] = {W1_MATCH_ROM, }; unsigned int tm = 750; - memcpy(&match[1], (u64 *) & sl->reg_num, 8); - - w1_write_block(dev, match, 9); - w1_write_8(dev, W1_CONVERT_TEMP); while (tm) { @@ -193,8 +188,7 @@ static ssize_t w1_therm_read_bin(struct kobject *kobj, char *buf, loff_t off, si flush_signals(current); } - if (!w1_reset_bus (dev)) { - w1_write_block(dev, match, 9); + if (!w1_reset_select_slave(sl)) { w1_write_8(dev, W1_READ_SCRATCHPAD); if ((count = w1_read_block(dev, rom, 9)) != 9) { @@ -205,7 +199,6 @@ static ssize_t w1_therm_read_bin(struct kobject *kobj, char *buf, loff_t off, si if (rom[8] == crc && rom[0]) verdict = 1; - } } -- cgit v1.2.3