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authorGraydon, Tracy <tracy.graydon@intel.com>2013-01-31 18:44:07 -0800
committerGraydon, Tracy <tracy.graydon@intel.com>2013-01-31 18:44:07 -0800
commitb19d79bf9028f58e3e4226bd9410b59f19fe3c8d (patch)
treea84dec919322f3d19c7c0cf3050c8c134a0d4fc6 /py-smbus
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Diffstat (limited to 'py-smbus')
-rw-r--r--py-smbus/README28
-rw-r--r--py-smbus/setup.py14
-rw-r--r--py-smbus/smbusmodule.c697
3 files changed, 739 insertions, 0 deletions
diff --git a/py-smbus/README b/py-smbus/README
new file mode 100644
index 0000000..b97801d
--- /dev/null
+++ b/py-smbus/README
@@ -0,0 +1,28 @@
+
+README: py-smbus
+
+Prerequisites:
+Be sure to build and install the lm-sensors userspace first. This package
+requires one of the header files from that.
+
+To build:
+ $ python setup.py build
+
+To install (will also build if necessary):
+ $ python setup.py install
+
+For general build/install help:
+ $ python setup.py --help-commands
+
+Frequently Answered Question:
+
+Q: It's throwing exceptions, nothing works, what's wrong?
+
+ A1: You need write permissions to the i2c-dev devices. Try running as root.
+
+ A2: Addresses in Linux/I2C are the most-sig 7 bits, right-justified. E.g.
+ if your device uses address 0xc0 to write and 0xc1 to read, then use
+ address 0x60 with this module.
+
+ A3: Some other kernel driver has claimed that I2C address. Unload it first.
+
diff --git a/py-smbus/setup.py b/py-smbus/setup.py
new file mode 100644
index 0000000..d85c808
--- /dev/null
+++ b/py-smbus/setup.py
@@ -0,0 +1,14 @@
+#!/usr/bin/env python
+
+from distutils.core import setup, Extension
+
+setup( name="smbus",
+ version="1.1",
+ description="Python bindings for Linux SMBus access through i2c-dev",
+ author="Mark M. Hoffman",
+ author_email="mhoffman@lightlink.com",
+ maintainer="Mark M. Hoffman",
+ maintainer_email="lm-sensors@lm-sensors.org",
+ license="GPLv2",
+ url="http://lm-sensors.org/",
+ ext_modules=[Extension("smbus", ["smbusmodule.c"])])
diff --git a/py-smbus/smbusmodule.c b/py-smbus/smbusmodule.c
new file mode 100644
index 0000000..afc54a4
--- /dev/null
+++ b/py-smbus/smbusmodule.c
@@ -0,0 +1,697 @@
+/*
+ * smbusmodule.c - Python bindings for Linux SMBus access through i2c-dev
+ * Copyright (C) 2005-2007 Mark M. Hoffman <mhoffman@lightlink.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <Python.h>
+#include "structmember.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <linux/i2c-dev.h>
+
+/*
+** These are required to build this module against Linux older than 2.6.23.
+*/
+#ifndef I2C_SMBUS_I2C_BLOCK_BROKEN
+#undef I2C_SMBUS_I2C_BLOCK_DATA
+#define I2C_SMBUS_I2C_BLOCK_BROKEN 6
+#define I2C_SMBUS_I2C_BLOCK_DATA 8
+#endif
+
+PyDoc_STRVAR(SMBus_module_doc,
+ "This module defines an object type that allows SMBus transactions\n"
+ "on Linux hosts. The host kernel must have I2C support, I2C device\n"
+ "interface support, and a bus adapter driver. All of these can be\n"
+ "either built-in to the kernel, or loaded from modules.\n"
+ "\n"
+ "Because the I2C device interface is opened R/W, users of this\n"
+ "module usually must have root permissions.\n");
+
+typedef struct {
+ PyObject_HEAD
+
+ int fd; /* open file descriptor: /dev/i2c-?, or -1 */
+ int addr; /* current client SMBus address */
+ int pec; /* !0 => Packet Error Codes enabled */
+} SMBus;
+
+static PyObject *
+SMBus_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
+{
+ SMBus *self;
+
+ if ((self = (SMBus *)type->tp_alloc(type, 0)) == NULL)
+ return NULL;
+
+ self->fd = -1;
+ self->addr = -1;
+ self->pec = 0;
+
+ return (PyObject *)self;
+}
+
+PyDoc_STRVAR(SMBus_close_doc,
+ "close()\n\n"
+ "Disconnects the object from the bus.\n");
+
+static PyObject *
+SMBus_close(SMBus *self)
+{
+ if ((self->fd != -1) && (close(self->fd) == -1)) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ self->fd = -1;
+ self->addr = -1;
+ self->pec = 0;
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+static void
+SMBus_dealloc(SMBus *self)
+{
+ PyObject *ref = SMBus_close(self);
+ Py_XDECREF(ref);
+
+ self->ob_type->tp_free((PyObject *)self);
+}
+
+#define MAXPATH 16
+
+PyDoc_STRVAR(SMBus_open_doc,
+ "open(bus)\n\n"
+ "Connects the object to the specified SMBus.\n");
+
+static PyObject *
+SMBus_open(SMBus *self, PyObject *args, PyObject *kwds)
+{
+ int bus;
+ char path[MAXPATH];
+
+ static char *kwlist[] = {"bus", NULL};
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwds, "i:open", kwlist, &bus))
+ return NULL;
+
+ if (snprintf(path, MAXPATH, "/dev/i2c-%d", bus) >= MAXPATH) {
+ PyErr_SetString(PyExc_OverflowError,
+ "Bus number is invalid.");
+ return NULL;
+ }
+
+ if ((self->fd = open(path, O_RDWR, 0)) == -1) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+static int
+SMBus_init(SMBus *self, PyObject *args, PyObject *kwds)
+{
+ int bus = -1;
+
+ static char *kwlist[] = {"bus", NULL};
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwds, "|i:__init__",
+ kwlist, &bus))
+ return -1;
+
+ if (bus >= 0) {
+ SMBus_open(self, args, kwds);
+ if (PyErr_Occurred())
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * private helper function, 0 => success, !0 => error
+ */
+static int
+SMBus_set_addr(SMBus *self, int addr)
+{
+ int ret = 0;
+
+ if (self->addr != addr) {
+ ret = ioctl(self->fd, I2C_SLAVE, addr);
+ self->addr = addr;
+ }
+
+ return ret;
+}
+
+#define SMBus_SET_ADDR(self, addr) do { \
+ if (SMBus_set_addr(self, addr)) { \
+ PyErr_SetFromErrno(PyExc_IOError); \
+ return NULL; \
+ } \
+} while(0)
+
+PyDoc_STRVAR(SMBus_write_quick_doc,
+ "write_quick(addr)\n\n"
+ "Perform SMBus Quick transaction.\n");
+
+static PyObject *
+SMBus_write_quick(SMBus *self, PyObject *args)
+{
+ int addr;
+ __s32 result;
+
+ if (!PyArg_ParseTuple(args, "i:write_quick", &addr))
+ return NULL;
+
+ SMBus_SET_ADDR(self, addr);
+
+ if ((result = i2c_smbus_write_quick(self->fd, I2C_SMBUS_WRITE))) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(SMBus_read_byte_doc,
+ "read_byte(addr) -> result\n\n"
+ "Perform SMBus Read Byte transaction.\n");
+
+static PyObject *
+SMBus_read_byte(SMBus *self, PyObject *args)
+{
+ int addr;
+ __s32 result;
+
+ if (!PyArg_ParseTuple(args, "i:read_byte", &addr))
+ return NULL;
+
+ SMBus_SET_ADDR(self, addr);
+
+ if ((result = i2c_smbus_read_byte(self->fd)) == -1) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ return Py_BuildValue("l", (long)result);
+}
+
+PyDoc_STRVAR(SMBus_write_byte_doc,
+ "write_byte(addr, val)\n\n"
+ "Perform SMBus Write Byte transaction.\n");
+
+static PyObject *
+SMBus_write_byte(SMBus *self, PyObject *args)
+{
+ int addr, val;
+ __s32 result;
+
+ if (!PyArg_ParseTuple(args, "ii:write_byte", &addr, &val))
+ return NULL;
+
+ SMBus_SET_ADDR(self, addr);
+
+ if ((result = i2c_smbus_write_byte(self->fd, (__u8)val)) == -1) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(SMBus_read_byte_data_doc,
+ "read_byte_data(addr, cmd) -> result\n\n"
+ "Perform SMBus Read Byte Data transaction.\n");
+
+static PyObject *
+SMBus_read_byte_data(SMBus *self, PyObject *args)
+{
+ int addr, cmd;
+ __s32 result;
+
+ if (!PyArg_ParseTuple(args, "ii:read_byte_data", &addr, &cmd))
+ return NULL;
+
+ SMBus_SET_ADDR(self, addr);
+
+ if ((result = i2c_smbus_read_byte_data(self->fd, (__u8)cmd)) == -1) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ return Py_BuildValue("l", (long)result);
+}
+
+PyDoc_STRVAR(SMBus_write_byte_data_doc,
+ "write_byte_data(addr, cmd, val)\n\n"
+ "Perform SMBus Write Byte Data transaction.\n");
+
+static PyObject *
+SMBus_write_byte_data(SMBus *self, PyObject *args)
+{
+ int addr, cmd, val;
+ __s32 result;
+
+ if (!PyArg_ParseTuple(args, "iii:write_byte_data", &addr, &cmd, &val))
+ return NULL;
+
+ SMBus_SET_ADDR(self, addr);
+
+ if ((result = i2c_smbus_write_byte_data(self->fd,
+ (__u8)cmd, (__u8)val)) == -1) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(SMBus_read_word_data_doc,
+ "read_word_data(addr, cmd) -> result\n\n"
+ "Perform SMBus Read Word Data transaction.\n");
+
+static PyObject *
+SMBus_read_word_data(SMBus *self, PyObject *args)
+{
+ int addr, cmd;
+ __s32 result;
+
+ if (!PyArg_ParseTuple(args, "ii:read_word_data", &addr, &cmd))
+ return NULL;
+
+ SMBus_SET_ADDR(self, addr);
+
+ if ((result = i2c_smbus_read_word_data(self->fd, (__u8)cmd)) == -1) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ return Py_BuildValue("l", (long)result);
+}
+
+PyDoc_STRVAR(SMBus_write_word_data_doc,
+ "write_word_data(addr, cmd, val)\n\n"
+ "Perform SMBus Write Word Data transaction.\n");
+
+static PyObject *
+SMBus_write_word_data(SMBus *self, PyObject *args)
+{
+ int addr, cmd, val;
+ __s32 result;
+
+ if (!PyArg_ParseTuple(args, "iii:write_word_data", &addr, &cmd, &val))
+ return NULL;
+
+ SMBus_SET_ADDR(self, addr);
+
+ if ((result = i2c_smbus_write_word_data(self->fd,
+ (__u8)cmd, (__u16)val)) == -1) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(SMBus_process_call_doc,
+ "process_call(addr, cmd, val)\n\n"
+ "Perform SMBus Process Call transaction.\n");
+
+static PyObject *
+SMBus_process_call(SMBus *self, PyObject *args)
+{
+ int addr, cmd, val;
+ __s32 result;
+
+ if (!PyArg_ParseTuple(args, "iii:process_call", &addr, &cmd, &val))
+ return NULL;
+
+ SMBus_SET_ADDR(self, addr);
+
+ if ((result = i2c_smbus_process_call(self->fd,
+ (__u8)cmd, (__u16)val)) == -1) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+/*
+ * private helper function; returns a new list of integers
+ */
+static PyObject *
+SMBus_buf_to_list(__u8 const *buf, int len)
+{
+ PyObject *list = PyList_New(len);
+ int ii;
+
+ if (list == NULL)
+ return NULL;
+
+ for (ii = 0; ii < len; ii++) {
+ PyObject *val = Py_BuildValue("l", (long)buf[ii]);
+ PyList_SET_ITEM(list, ii, val);
+ }
+ return list;
+}
+
+PyDoc_STRVAR(SMBus_read_block_data_doc,
+ "read_block_data(addr, cmd) -> results\n\n"
+ "Perform SMBus Read Block Data transaction.\n");
+
+static PyObject *
+SMBus_read_block_data(SMBus *self, PyObject *args)
+{
+ int addr, cmd;
+ union i2c_smbus_data data;
+
+ if (!PyArg_ParseTuple(args, "ii:read_block_data", &addr, &cmd))
+ return NULL;
+
+ SMBus_SET_ADDR(self, addr);
+
+ /* save a bit of code by calling the access function directly */
+ if (i2c_smbus_access(self->fd, I2C_SMBUS_READ, (__u8)cmd,
+ I2C_SMBUS_BLOCK_DATA, &data)) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ /* first byte of the block contains (remaining) data length */
+ return SMBus_buf_to_list(&data.block[1], data.block[0]);
+}
+
+/*
+ * private helper function: convert an integer list to union i2c_smbus_data
+ */
+static int
+SMBus_list_to_data(PyObject *list, union i2c_smbus_data *data)
+{
+ static char *msg = "Third argument must be a list of at least one, "
+ "but not more than 32 integers";
+ int ii, len;
+
+ if (!PyList_Check(list)) {
+ PyErr_SetString(PyExc_TypeError, msg);
+ return 0; /* fail */
+ }
+
+ if ((len = PyList_GET_SIZE(list)) > 32) {
+ PyErr_SetString(PyExc_OverflowError, msg);
+ return 0; /* fail */
+ }
+
+ /* first byte is the length */
+ data->block[0] = (__u8)len;
+
+ for (ii = 0; ii < len; ii++) {
+ PyObject *val = PyList_GET_ITEM(list, ii);
+ if (!PyInt_Check(val)) {
+ PyErr_SetString(PyExc_TypeError, msg);
+ return 0; /* fail */
+ }
+ data->block[ii+1] = (__u8)PyInt_AS_LONG(val);
+ }
+
+ return 1; /* success */
+}
+
+PyDoc_STRVAR(SMBus_write_block_data_doc,
+ "write_block_data(addr, cmd, [vals])\n\n"
+ "Perform SMBus Write Block Data transaction.\n");
+
+static PyObject *
+SMBus_write_block_data(SMBus *self, PyObject *args)
+{
+ int addr, cmd;
+ union i2c_smbus_data data;
+
+ if (!PyArg_ParseTuple(args, "iiO&:write_block_data", &addr, &cmd,
+ SMBus_list_to_data, &data))
+ return NULL;
+
+ SMBus_SET_ADDR(self, addr);
+
+ /* save a bit of code by calling the access function directly */
+ if (i2c_smbus_access(self->fd, I2C_SMBUS_WRITE, (__u8)cmd,
+ I2C_SMBUS_BLOCK_DATA, &data)) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(SMBus_block_process_call_doc,
+ "block_process_call(addr, cmd, [vals]) -> results\n\n"
+ "Perform SMBus Block Process Call transaction.\n");
+
+static PyObject *
+SMBus_block_process_call(SMBus *self, PyObject *args)
+{
+ int addr, cmd;
+ union i2c_smbus_data data;
+
+ if (!PyArg_ParseTuple(args, "iiO&:block_process_call", &addr, &cmd,
+ SMBus_list_to_data, &data))
+ return NULL;
+
+ SMBus_SET_ADDR(self, addr);
+
+ /* save a bit of code by calling the access function directly */
+ if (i2c_smbus_access(self->fd, I2C_SMBUS_WRITE, (__u8)cmd,
+ I2C_SMBUS_BLOCK_PROC_CALL, &data)) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ /* first byte of the block contains (remaining) data length */
+ return SMBus_buf_to_list(&data.block[1], data.block[0]);
+}
+
+PyDoc_STRVAR(SMBus_read_i2c_block_data_doc,
+ "read_i2c_block_data(addr, cmd, len=32) -> results\n\n"
+ "Perform I2C Block Read transaction.\n");
+
+static PyObject *
+SMBus_read_i2c_block_data(SMBus *self, PyObject *args)
+{
+ int addr, cmd, len=32;
+ union i2c_smbus_data data;
+
+ if (!PyArg_ParseTuple(args, "ii|i:read_i2c_block_data", &addr, &cmd,
+ &len))
+ return NULL;
+
+ SMBus_SET_ADDR(self, addr);
+
+ data.block[0] = len;
+ /* save a bit of code by calling the access function directly */
+ if (i2c_smbus_access(self->fd, I2C_SMBUS_READ, (__u8)cmd,
+ len == 32 ? I2C_SMBUS_I2C_BLOCK_BROKEN:
+ I2C_SMBUS_I2C_BLOCK_DATA, &data)) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ /* first byte of the block contains (remaining) data length */
+ return SMBus_buf_to_list(&data.block[1], data.block[0]);
+}
+
+PyDoc_STRVAR(SMBus_write_i2c_block_data_doc,
+ "write_i2c_block_data(addr, cmd, [vals])\n\n"
+ "Perform I2C Block Write transaction.\n");
+
+static PyObject *
+SMBus_write_i2c_block_data(SMBus *self, PyObject *args)
+{
+ int addr, cmd;
+ union i2c_smbus_data data;
+
+ if (!PyArg_ParseTuple(args, "iiO&:write_i2c_block_data", &addr, &cmd,
+ SMBus_list_to_data, &data))
+ return NULL;
+
+ SMBus_SET_ADDR(self, addr);
+
+ /* save a bit of code by calling the access function directly */
+ if (i2c_smbus_access(self->fd, I2C_SMBUS_WRITE, (__u8)cmd,
+ I2C_SMBUS_I2C_BLOCK_BROKEN, &data)) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(SMBus_type_doc,
+ "SMBus([bus]) -> SMBus\n\n"
+ "Return a new SMBus object that is (optionally) connected to the\n"
+ "specified I2C device interface.\n");
+
+static PyMethodDef SMBus_methods[] = {
+ {"open", (PyCFunction)SMBus_open, METH_VARARGS | METH_KEYWORDS,
+ SMBus_open_doc},
+ {"close", (PyCFunction)SMBus_close, METH_NOARGS,
+ SMBus_close_doc},
+ {"write_quick", (PyCFunction)SMBus_write_quick, METH_VARARGS,
+ SMBus_write_quick_doc},
+ {"read_byte", (PyCFunction)SMBus_read_byte, METH_VARARGS,
+ SMBus_read_byte_doc},
+ {"write_byte", (PyCFunction)SMBus_write_byte, METH_VARARGS,
+ SMBus_write_byte_doc},
+ {"read_byte_data", (PyCFunction)SMBus_read_byte_data, METH_VARARGS,
+ SMBus_read_byte_data_doc},
+ {"write_byte_data", (PyCFunction)SMBus_write_byte_data, METH_VARARGS,
+ SMBus_write_byte_data_doc},
+ {"read_word_data", (PyCFunction)SMBus_read_word_data, METH_VARARGS,
+ SMBus_read_word_data_doc},
+ {"write_word_data", (PyCFunction)SMBus_write_word_data, METH_VARARGS,
+ SMBus_write_word_data_doc},
+ {"process_call", (PyCFunction)SMBus_process_call, METH_VARARGS,
+ SMBus_process_call_doc},
+ {"read_block_data", (PyCFunction)SMBus_read_block_data, METH_VARARGS,
+ SMBus_read_block_data_doc},
+ {"write_block_data", (PyCFunction)SMBus_write_block_data, METH_VARARGS,
+ SMBus_write_block_data_doc},
+ {"block_process_call", (PyCFunction)SMBus_block_process_call,
+ METH_VARARGS, SMBus_block_process_call_doc},
+ {"read_i2c_block_data", (PyCFunction)SMBus_read_i2c_block_data,
+ METH_VARARGS, SMBus_read_i2c_block_data_doc},
+ {"write_i2c_block_data", (PyCFunction)SMBus_write_i2c_block_data,
+ METH_VARARGS, SMBus_write_i2c_block_data_doc},
+ {NULL},
+};
+
+static PyObject *
+SMBus_get_pec(SMBus *self, void *closure)
+{
+ PyObject *result = self->pec ? Py_True : Py_False;
+ Py_INCREF(result);
+ return result;
+}
+
+static int
+SMBus_set_pec(SMBus *self, PyObject *val, void *closure)
+{
+ int pec;
+
+ pec = PyObject_IsTrue(val);
+
+ if (val == NULL) {
+ PyErr_SetString(PyExc_TypeError,
+ "Cannot delete attribute");
+ return -1;
+ }
+ else if (pec == -1) {
+ PyErr_SetString(PyExc_TypeError,
+ "The pec attribute must be a boolean.");
+ return -1;
+ }
+
+ if (self->pec != pec) {
+ if (ioctl(self->fd, I2C_PEC, pec)) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return -1;
+ }
+ self->pec = pec;
+ }
+
+ return 0;
+}
+
+static PyGetSetDef SMBus_getset[] = {
+ {"pec", (getter)SMBus_get_pec, (setter)SMBus_set_pec,
+ "True if Packet Error Codes (PEC) are enabled"},
+ {NULL},
+};
+
+static PyTypeObject SMBus_type = {
+ PyObject_HEAD_INIT(NULL)
+ 0, /* ob_size */
+ "SMBus", /* tp_name */
+ sizeof(SMBus), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ (destructor)SMBus_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ 0, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT, /* tp_flags */
+ SMBus_type_doc, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ SMBus_methods, /* tp_methods */
+ 0, /* tp_members */
+ SMBus_getset, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ (initproc)SMBus_init, /* tp_init */
+ 0, /* tp_alloc */
+ SMBus_new, /* tp_new */
+};
+
+static PyMethodDef SMBus_module_methods[] = {
+ {NULL}
+};
+
+#ifndef PyMODINIT_FUNC /* declarations for DLL import/export */
+#define PyMODINIT_FUNC void
+#endif
+PyMODINIT_FUNC
+initsmbus(void)
+{
+ PyObject* m;
+
+ if (PyType_Ready(&SMBus_type) < 0)
+ return;
+
+ m = Py_InitModule3("smbus", SMBus_module_methods, SMBus_module_doc);
+
+ Py_INCREF(&SMBus_type);
+ PyModule_AddObject(m, "SMBus", (PyObject *)&SMBus_type);
+}
+