*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-
//config:config I2CGET
//config: bool "i2cget (5.6 kb)"
//config: default y
*/
#include "libbb.h"
-#include "common_bufsiz.h"
#include <linux/i2c.h>
-#include <linux/i2c-dev.h>
#define I2CDUMP_NUM_REGS 256
#define I2CDETECT_MODE_QUICK 1
#define I2CDETECT_MODE_READ 2
+/* linux/i2c-dev.h from i2c-tools overwrites the one from linux uapi
+ * and defines symbols already defined by linux/i2c.h.
+ * Also, it defines a bunch of static inlines which we would rather NOT
+ * inline. What a mess.
+ * We need only these definitions from linux/i2c-dev.h:
+ */
+#define I2C_SLAVE 0x0703
+#define I2C_SLAVE_FORCE 0x0706
+#define I2C_FUNCS 0x0705
+#define I2C_PEC 0x0708
+#define I2C_SMBUS 0x0720
+struct i2c_smbus_ioctl_data {
+ __u8 read_write;
+ __u8 command;
+ __u32 size;
+ union i2c_smbus_data *data;
+};
+/* end linux/i2c-dev.h */
+
/*
* This is needed for ioctl_or_perror_and_die() since it only accepts pointers.
*/
#if ENABLE_I2CGET
//usage:#define i2cget_trivial_usage
-//usage: "[-f] [-y] BUS CHIP-ADDRESS [DATA-ADDRESS [MODE]]"
+//usage: "[-fy] BUS CHIP-ADDRESS [DATA-ADDRESS [MODE]]"
//usage:#define i2cget_full_usage "\n\n"
-//usage: "Read from I2C/SMBus chip registers\n"
-//usage: "\n I2CBUS i2c bus number"
-//usage: "\n ADDRESS 0x03 - 0x77"
+//usage: "Read from I2C/SMBus chip registers"
+//usage: "\n"
+//usage: "\n I2CBUS I2C bus number"
+//usage: "\n ADDRESS 0x03-0x77"
//usage: "\nMODE is:"
-//usage: "\n b read byte data (default)"
-//usage: "\n w read word data"
-//usage: "\n c write byte/read byte"
+//usage: "\n b Read byte data (default)"
+//usage: "\n w Read word data"
+//usage: "\n c Write byte/read byte"
//usage: "\n Append p for SMBus PEC"
//usage: "\n"
-//usage: "\n -f force access"
-//usage: "\n -y disable interactive mode"
+//usage: "\n -f Force access"
+//usage: "\n -y Disable interactive mode"
int i2cget_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int i2cget_main(int argc UNUSED_PARAM, char **argv)
{
const unsigned opt_f = (1 << 0), opt_y = (1 << 1);
- const char *const optstr = "fy";
int bus_num, bus_addr, data_addr = -1, status;
int mode = I2C_SMBUS_BYTE, pec = 0, fd;
unsigned opts;
- opt_complementary = "-2:?4"; /* from 2 to 4 args */
- opts = getopt32(argv, optstr);
+ opts = getopt32(argv, "^" "fy" "\0" "-2:?4"/*from 2 to 4 args*/);
argv += optind;
bus_num = i2c_bus_lookup(argv[0]);
#if ENABLE_I2CSET
//usage:#define i2cset_trivial_usage
-//usage: "[-f] [-y] [-m MASK] BUS CHIP-ADDR DATA-ADDR [VALUE] ... [MODE]"
+//usage: "[-fy] [-m MASK] BUS CHIP-ADDRESS DATA-ADDRESS [VALUE] ... [MODE]"
//usage:#define i2cset_full_usage "\n\n"
-//usage: "Set I2C registers\n"
-//usage: "\n I2CBUS i2c bus number"
-//usage: "\n ADDRESS 0x03 - 0x77"
+//usage: "Set I2C registers"
+//usage: "\n"
+//usage: "\n I2CBUS I2C bus number"
+//usage: "\n ADDRESS 0x03-0x77"
//usage: "\nMODE is:"
-//usage: "\n c byte, no value"
-//usage: "\n b byte data (default)"
-//usage: "\n w word data"
+//usage: "\n c Byte, no value"
+//usage: "\n b Byte data (default)"
+//usage: "\n w Word data"
//usage: "\n i I2C block data"
//usage: "\n s SMBus block data"
//usage: "\n Append p for SMBus PEC"
//usage: "\n"
-//usage: "\n -f force access"
-//usage: "\n -y disable interactive mode"
-//usage: "\n -r read back and compare the result"
-//usage: "\n -m MASK mask specifying which bits to write"
+//usage: "\n -f Force access"
+//usage: "\n -y Disable interactive mode"
+//usage: "\n -r Read back and compare the result"
+//usage: "\n -m MASK Mask specifying which bits to write"
int i2cset_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int i2cset_main(int argc, char **argv)
{
const unsigned opt_f = (1 << 0), opt_y = (1 << 1),
opt_m = (1 << 2), opt_r = (1 << 3);
- const char *const optstr = "fym:r";
int bus_num, bus_addr, data_addr, mode = I2C_SMBUS_BYTE, pec = 0;
int val, blen = 0, mask = 0, fd, status;
char *opt_m_arg = NULL;
unsigned opts;
- opt_complementary = "-3"; /* from 3 to ? args */
- opts = getopt32(argv, optstr, &opt_m_arg);
+ opts = getopt32(argv, "^" "fym:r" "\0" "-3"/*from 3 to ? args*/, &opt_m_arg);
argv += optind;
argc -= optind;
}
//usage:#define i2cdump_trivial_usage
-//usage: "[-f] [-r FIRST-LAST] [-y] BUS ADDR [MODE]"
+//usage: "[-fy] [-r FIRST-LAST] BUS ADDR [MODE]"
//usage:#define i2cdump_full_usage "\n\n"
-//usage: "Examine I2C registers\n"
-//usage: "\n I2CBUS i2c bus number"
-//usage: "\n ADDRESS 0x03 - 0x77"
+//usage: "Examine I2C registers"
+//usage: "\n"
+//usage: "\n I2CBUS I2C bus number"
+//usage: "\n ADDRESS 0x03-0x77"
//usage: "\nMODE is:"
-//usage: "\n b byte (default)"
-//usage: "\n w word"
-//usage: "\n W word on even register addresses"
+//usage: "\n b Byte (default)"
+//usage: "\n w Word"
+//usage: "\n W Word on even register addresses"
//usage: "\n i I2C block"
//usage: "\n s SMBus block"
-//usage: "\n c consecutive byte"
+//usage: "\n c Consecutive byte"
//usage: "\n Append p for SMBus PEC"
//usage: "\n"
-//usage: "\n -f force access"
-//usage: "\n -y disable interactive mode"
-//usage: "\n -r limit the number of registers being accessed"
+//usage: "\n -f Force access"
+//usage: "\n -y Disable interactive mode"
+//usage: "\n -r Limit the number of registers being accessed"
int i2cdump_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int i2cdump_main(int argc UNUSED_PARAM, char **argv)
{
const unsigned opt_f = (1 << 0), opt_y = (1 << 1),
opt_r = (1 << 2);
- const char *const optstr = "fyr:";
int bus_num, bus_addr, mode = I2C_SMBUS_BYTE_DATA, even = 0, pec = 0;
unsigned first = 0x00, last = 0xff, opts;
char *opt_r_str, *dash;
int fd, res;
- opt_complementary = "-2:?3"; /* from 2 to 3 args */
- opts = getopt32(argv, optstr, &opt_r_str);
+ opts = getopt32(argv, "^"
+ "fyr:"
+ "\0" "-2:?3" /* from 2 to 3 args */,
+ &opt_r_str
+ );
argv += optind;
bus_num = i2c_bus_lookup(argv[0]);
}
//usage:#define i2cdetect_trivial_usage
-//usage: "[-F I2CBUS] [-l] [-y] [-a] [-q|-r] I2CBUS [FIRST LAST]"
+//usage: "-l | -F I2CBUS | [-ya] [-q|-r] I2CBUS [FIRST LAST]"
//usage:#define i2cdetect_full_usage "\n\n"
-//usage: "Detect I2C chips.\n"
-//usage: "\n I2CBUS i2c bus number"
-//usage: "\n FIRST and LAST limit the probing range"
+//usage: "Detect I2C chips"
//usage: "\n"
-//usage: "\n -l output list of installed busses"
-//usage: "\n -y disable interactive mode"
-//usage: "\n -a force scanning of non-regular addresses"
-//usage: "\n -q use smbus quick write commands for probing (default)"
-//usage: "\n -r use smbus read byte commands for probing"
-//usage: "\n -F display list of functionalities"
+//usage: "\n -l List installed buses"
+//usage: "\n -F BUS# List functionalities on this bus"
+//usage: "\n -y Disable interactive mode"
+//usage: "\n -a Force scanning of non-regular addresses"
+//usage: "\n -q Use smbus quick write commands for probing (default)"
+//usage: "\n -r Use smbus read byte commands for probing"
+//usage: "\n FIRST and LAST limit probing range"
int i2cdetect_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int i2cdetect_main(int argc UNUSED_PARAM, char **argv)
{
const unsigned opt_y = (1 << 0), opt_a = (1 << 1),
opt_q = (1 << 2), opt_r = (1 << 3),
opt_F = (1 << 4), opt_l = (1 << 5);
- const char *const optstr = "yaqrFl";
int fd, bus_num, i, j, mode = I2CDETECT_MODE_AUTO, status, cmd;
unsigned first = 0x03, last = 0x77, opts;
unsigned long funcs;
- opt_complementary = "q--r:r--q:" /* mutually exclusive */
- "?3"; /* up to 3 args */
- opts = getopt32(argv, optstr);
+ opts = getopt32(argv, "^"
+ "yaqrFl"
+ "\0"
+ "q--r:r--q:"/*mutually exclusive*/
+ "?3"/*up to 3 args*/
+ );
argv += optind;
if (opts & opt_l)
projects / oweals / busybox.git / blobdiff