wt/lm-sensors
1
0 Fork 0
mirror of https://github.com/lm-sensors/lm-sensors.git synced 2026-11-08 16:11:26 +00:00
Code Issues Packages Projects Releases Wiki Activity

add ability to specify the "command" on a smbus block read

Browse Source 
(previously forced to zero). Limit smbus block read printout to 32 bytes.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@1390 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Mark D. Studebaker committed 2002-06-12 02:52:16 +00:00
1 parent ae252b5901
commit 7cdb5c4439
1 file changed
+24 -9
Download Patch File Download Diff File Expand all files Collapse all files
prog/dump/i2cdump.c
+24 -9
View File
@@ -46,6 +46,9 @@ void help(void)
fprintf(stderr,"Syntax: i2cdump I2CBUS ADDRESS [MODE] [BANK [BANKREG]]\n");
fprintf(stderr," MODE is 'b[yte]', 'w[ord]', 's[mbusblock], or 'i[2cblock]' (default b)\n");
fprintf(stderr," I2CBUS is an integer\n");
fprintf(stderr," ADDRESS is an integer 0x00 - 0x7f\n");
fprintf(stderr," BANK and BANKREG are for byte and word accesses (default bank 0, reg 0x4e)\n");
fprintf(stderr," BANK is the command for smbusblock accesses (default 0)\n");
if((fptr = fopen("/proc/bus/i2c", "r"))) {
fprintf(stderr," Installed I2C busses:\n");
while(fgets(s, 100, fptr))
@@ -120,20 +123,27 @@ int main(int argc, char *argv[])
if(argc > 4) {
bank = strtol(argv[4],&end,0);
if (*end) {
if (*end || size == I2C_SMBUS_I2C_BLOCK_DATA) {
fprintf(stderr,"Error: Invalid bank number!\n");
help();
exit(1);
}
if ((bank < 0) || (bank > 15)) {
fprintf(stderr,"Error: bank out of range (0-15)!\n");
if (((size == I2C_SMBUS_BYTE_DATA) || (size == I2C_SMBUS_WORD_DATA)) &&
((bank < 0) || (bank > 15))) {
fprintf(stderr,"Error: bank out of range!\n");
help();
exit(1);
}
if (((size == I2C_SMBUS_BLOCK_DATA)) &&
((bank < 0) || (bank > 0xff))) {
fprintf(stderr,"Error: block command out of range!\n");
help();
exit(1);
}
if(argc > 5) {
bankreg = strtol(argv[5],&end,0);
if (*end) {
if (*end || size == I2C_SMBUS_BLOCK_DATA) {
fprintf(stderr,"Error: Invalid bank register number!\n");
help();
exit(1);
@@ -250,13 +260,16 @@ int main(int argc, char *argv[])
size == I2C_SMBUS_I2C_BLOCK_DATA ? "i2c block" :
size == I2C_SMBUS_BYTE_DATA ? "byte" : "word");
if(bank)
fprintf(stderr," Probing bank %d using bank register 0x%02x.\n",
bank, bankreg);
if(size == I2C_SMBUS_BLOCK_DATA)
fprintf(stderr," Using command 0x%02x.\n", bank);
else
fprintf(stderr," Probing bank %d using bank register 0x%02x.\n",
bank, bankreg);
fprintf(stderr," You have five seconds to reconsider and press CTRL-C!\n\n");
sleep(5);
/* See Winbond w83781d data sheet for bank details */
if(bank) {
if(bank && size != I2C_SMBUS_BLOCK_DATA) {
i2c_smbus_write_byte_data(file,bankreg,bank | 0x80);
}
@@ -266,7 +279,7 @@ int main(int argc, char *argv[])
/* do the block transaction */
if(size == I2C_SMBUS_BLOCK_DATA || size == I2C_SMBUS_I2C_BLOCK_DATA) {
if(size == I2C_SMBUS_BLOCK_DATA) {
res = i2c_smbus_read_block_data(file,0,cblock);
res = i2c_smbus_read_block_data(file, bank, cblock);
} else if(size == I2C_SMBUS_I2C_BLOCK_DATA) {
#if USE_I2C_BLOCK
res = 0;
@@ -320,6 +333,8 @@ int main(int argc, char *argv[])
printf("%c",res & 0xff);
}
printf("\n");
if(size == I2C_SMBUS_BLOCK_DATA && i == 16)
break;
}
} else {
printf(" 0,8 1,9 2,a 3,b 4,c 5,d 6,e 7,f\n");
@@ -335,7 +350,7 @@ int main(int argc, char *argv[])
printf("\n");
}
}
if(bank) {
if(bank && size != I2C_SMBUS_BLOCK_DATA) {
i2c_smbus_write_byte_data(file,bankreg,0x80);
}
exit(0);