We currently read data twice in byte mode. Add a check to avoid calling
i2c_smbus_read_i2c_block_data() if we're not in I2C or SMBus block mode.
Signed-off-by: Bartosz Golaszewski <bartekg...@gmail.com>
---
miscutils/i2c_tools.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/miscutils/i2c_tools.c b/miscutils/i2c_tools.c
index 907d738..094bf9e 100644
--- a/miscutils/i2c_tools.c
+++ b/miscutils/i2c_tools.c
@@ -971,7 +971,8 @@ int i2cdump_main(int argc UNUSED_PARAM, char **argv)
/* All but word data. */
if (mode != I2C_SMBUS_WORD_DATA || even) {
- blen = read_block_data(fd, mode, block);
+ if (mode == I2C_SMBUS_BLOCK_DATA || mode ==
I2C_SMBUS_I2C_BLOCK_DATA)
+ blen = read_block_data(fd, mode, block);
if (mode == I2C_SMBUS_BYTE) {
res = i2c_smbus_write_byte(fd, first);
--
2.1.4
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