It seems that i2c block write emulation need following modification.
Index: i2c-core.c
===================================================================
RCS file: /home/cvs/i2c/kernel/i2c-core.c,v
retrieving revision 1.88
diff -u -r1.88 i2c-core.c
--- i2c-core.c 2002/10/01 14:02:28 1.88
+++ i2c-core.c 2002/10/18 14:19:50
@@ -1368,15 +1368,15 @@
if (read_write == I2C_SMBUS_READ) {
msg[1].len = I2C_SMBUS_I2C_BLOCK_MAX;
} else {
- msg[0].len = data->block[0] + 2;
- if (msg[0].len > I2C_SMBUS_I2C_BLOCK_MAX + 2) {
+ msg[0].len = data->block[0] + 1;
+ if (msg[0].len > I2C_SMBUS_I2C_BLOCK_MAX + 1) {
printk("i2c-core.o: i2c_smbus_xfer_emulated called with "
"invalid block write size (%d)\n",
data->block[0]);
return -1;
}
- for (i = 0; i < data->block[0]; i++)
- msgbuf0[i] = data->block[i+1];
+ for (i = 1; i <= data->block[0]; i++)
+ msgbuf0[i] = data->block[i];
}
break;
default:
----
Hideki IWAMOTO h-iwamoto at kit.hi-ho.ne.jp
