diff options
| -rw-r--r-- | Documentation/hwmon/pcf8591 (renamed from Documentation/i2c/chips/pcf8591) | 0 | ||||
| -rw-r--r-- | drivers/hwmon/Kconfig | 14 | ||||
| -rw-r--r-- | drivers/hwmon/Makefile | 1 | ||||
| -rw-r--r-- | drivers/hwmon/pcf8591.c (renamed from drivers/i2c/chips/pcf8591.c) | 24 | ||||
| -rw-r--r-- | drivers/i2c/chips/Kconfig | 13 | ||||
| -rw-r--r-- | drivers/i2c/chips/Makefile | 1 |
6 files changed, 27 insertions, 26 deletions
diff --git a/Documentation/i2c/chips/pcf8591 b/Documentation/hwmon/pcf8591 index 5628fcf4207..5628fcf4207 100644 --- a/Documentation/i2c/chips/pcf8591 +++ b/Documentation/hwmon/pcf8591 diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 0eb4170cc4a..9a22816b37d 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -635,6 +635,20 @@ config SENSORS_PC87427 This driver can also be built as a module. If so, the module will be called pc87427. +config SENSORS_PCF8591 + tristate "Philips PCF8591 ADC/DAC" + depends on I2C + default n + help + If you say yes here you get support for Philips PCF8591 4-channel + ADC, 1-channel DAC chips. + + This driver can also be built as a module. If so, the module + will be called pcf8591. + + These devices are hard to detect and rarely found on mainstream + hardware. If unsure, say N. + config SENSORS_SIS5595 tristate "Silicon Integrated Systems Corp. SiS5595" depends on PCI diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 2e80f37f39e..e332d626792 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -70,6 +70,7 @@ obj-$(CONFIG_SENSORS_MAX1619) += max1619.o obj-$(CONFIG_SENSORS_MAX6650) += max6650.o obj-$(CONFIG_SENSORS_PC87360) += pc87360.o obj-$(CONFIG_SENSORS_PC87427) += pc87427.o +obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o obj-$(CONFIG_SENSORS_SIS5595) += sis5595.o obj-$(CONFIG_SENSORS_SMSC47B397)+= smsc47b397.o obj-$(CONFIG_SENSORS_SMSC47M1) += smsc47m1.o diff --git a/drivers/i2c/chips/pcf8591.c b/drivers/hwmon/pcf8591.c index 16ce3e19377..1d7ffebd679 100644 --- a/drivers/i2c/chips/pcf8591.c +++ b/drivers/hwmon/pcf8591.c @@ -1,6 +1,6 @@ /* Copyright (C) 2001-2004 Aurelien Jarno <aurelien@aurel32.net> - Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with + Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with the help of Jean Delvare <khali@linux-fr.org> This program is free software; you can redistribute it and/or modify @@ -41,13 +41,13 @@ MODULE_PARM_DESC(input_mode, " 3 = two differential inputs\n"); /* The PCF8591 control byte - 7 6 5 4 3 2 1 0 + 7 6 5 4 3 2 1 0 | 0 |AOEF| AIP | 0 |AINC| AICH | */ /* Analog Output Enable Flag (analog output active if 1) */ #define PCF8591_CONTROL_AOEF 0x40 - -/* Analog Input Programming + +/* Analog Input Programming 0x00 = four single ended inputs 0x10 = three differential inputs 0x20 = single ended and differential mixed @@ -58,7 +58,7 @@ MODULE_PARM_DESC(input_mode, #define PCF8591_CONTROL_AINC 0x04 /* Channel selection - 0x00 = channel 0 + 0x00 = channel 0 0x01 = channel 1 0x02 = channel 2 0x03 = channel 3 */ @@ -114,7 +114,7 @@ static ssize_t set_out0_output(struct device *dev, struct device_attribute *attr return -EINVAL; } -static DEVICE_ATTR(out0_output, S_IWUSR | S_IRUGO, +static DEVICE_ATTR(out0_output, S_IWUSR | S_IRUGO, show_out0_ouput, set_out0_output); static ssize_t show_out0_enable(struct device *dev, struct device_attribute *attr, char *buf) @@ -139,7 +139,7 @@ static ssize_t set_out0_enable(struct device *dev, struct device_attribute *attr return count; } -static DEVICE_ATTR(out0_enable, S_IWUSR | S_IRUGO, +static DEVICE_ATTR(out0_enable, S_IWUSR | S_IRUGO, show_out0_enable, set_out0_enable); static struct attribute *pcf8591_attributes[] = { @@ -196,7 +196,7 @@ static int pcf8591_probe(struct i2c_client *client, err = -ENOMEM; goto exit; } - + i2c_set_clientdata(client, data); mutex_init(&data->update_lock); @@ -249,8 +249,8 @@ static void pcf8591_init_client(struct i2c_client *client) data->aout = PCF8591_INIT_AOUT; i2c_smbus_write_byte_data(client, data->control, data->aout); - - /* The first byte transmitted contains the conversion code of the + + /* The first byte transmitted contains the conversion code of the previous read cycle. FLUSH IT! */ i2c_smbus_read_byte(client); } @@ -267,8 +267,8 @@ static int pcf8591_read_channel(struct device *dev, int channel) data->control = (data->control & ~PCF8591_CONTROL_AICH_MASK) | channel; i2c_smbus_write_byte(client, data->control); - - /* The first byte transmitted contains the conversion code of + + /* The first byte transmitted contains the conversion code of the previous read cycle. FLUSH IT! */ i2c_smbus_read_byte(client); } diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig index c80312c1f38..8f8c81eb0ae 100644 --- a/drivers/i2c/chips/Kconfig +++ b/drivers/i2c/chips/Kconfig @@ -64,19 +64,6 @@ config SENSORS_PCA9539 This driver is deprecated and will be dropped soon. Use drivers/gpio/pca953x.c instead. -config SENSORS_PCF8591 - tristate "Philips PCF8591" - depends on EXPERIMENTAL - default n - help - If you say yes here you get support for Philips PCF8591 chips. - - This driver can also be built as a module. If so, the module - will be called pcf8591. - - These devices are hard to detect and rarely found on mainstream - hardware. If unsure, say N. - config SENSORS_MAX6875 tristate "Maxim MAX6875 Power supply supervisor" depends on EXPERIMENTAL diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile index d142f238a2d..55a37603718 100644 --- a/drivers/i2c/chips/Makefile +++ b/drivers/i2c/chips/Makefile @@ -15,7 +15,6 @@ obj-$(CONFIG_SENSORS_MAX6875) += max6875.o obj-$(CONFIG_SENSORS_PCA9539) += pca9539.o obj-$(CONFIG_SENSORS_PCF8574) += pcf8574.o obj-$(CONFIG_PCF8575) += pcf8575.o -obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o obj-$(CONFIG_SENSORS_TSL2550) += tsl2550.o ifeq ($(CONFIG_I2C_DEBUG_CHIP),y) |