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i2c: use uint8_t throughout to make code clearer

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Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Brendan Le Foll
2014-05-23 14:21:53 +01:00
parent ded3830951
commit d847ae7847
4 changed files with 15 additions and 15 deletions
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11
src/i2c/i2c.c
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@@ -79,7 +79,7 @@ maa_i2c_frequency(maa_i2c_context dev, int hz)
}
maa_result_t
maa_i2c_read(maa_i2c_context dev, char *data, int length)
maa_i2c_read(maa_i2c_context dev, uint8_t* data, int length)
{
// this is the read(3) syscall not maa_i2c_read()
if (read(dev->fh, data, length) == length) {
@@ -88,11 +88,10 @@ maa_i2c_read(maa_i2c_context dev, char *data, int length)
return MAA_ERROR_NO_DATA_AVAILABLE;
}
int
uint8_t
maa_i2c_read_byte(maa_i2c_context dev)
{
int byte;
byte = i2c_smbus_read_byte(dev->fh);
uint8_t byte = i2c_smbus_read_byte(dev->fh);
if (byte < 0) {
return -1;
}
@@ -100,7 +99,7 @@ maa_i2c_read_byte(maa_i2c_context dev)
}
maa_result_t
maa_i2c_write(maa_i2c_context dev, const char* data, int length)
maa_i2c_write(maa_i2c_context dev, const uint8_t* data, int length)
{
if (i2c_smbus_write_i2c_block_data(dev->fh, data[0], length-1, (uint8_t*) data+1) < 0) {
fprintf(stderr, "Failed to write to i2c\n");
@@ -110,7 +109,7 @@ maa_i2c_write(maa_i2c_context dev, const char* data, int length)
}
maa_result_t
maa_i2c_write_byte(maa_i2c_context dev, const int data)
maa_i2c_write_byte(maa_i2c_context dev, const uint8_t data)
{
if (i2c_smbus_write_byte(dev->fh, data) < 0) {
fprintf(stderr, "Failed to write to i2c\n");