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Code Issues Releases Wiki Activity

[i2c] Perform register reads as single transactions (#10389)

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Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
This commit is contained in:
Clyde Stubbs
2025-08-27 19:30:33 +10:00
committed by GitHub
parent 65d63de9b6
commit c171d13c8c
38 changed files with 329 additions and 643 deletions
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14
esphome/components/tca9548a/tca9548a.cpp
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@@ -6,23 +6,15 @@ namespace tca9548a {
static const char *const TAG = "tca9548a";
i2c::ErrorCode TCA9548AChannel::readv(uint8_t address, i2c::ReadBuffer *buffers, size_t cnt) {
i2c::ErrorCode TCA9548AChannel::write_readv(uint8_t address, const uint8_t *write_buffer, size_t write_count,
uint8_t *read_buffer, size_t read_count) {
auto err = this->parent_->switch_to_channel(channel_);
if (err != i2c::ERROR_OK)
return err;
err = this->parent_->bus_->readv(address, buffers, cnt);
err = this->parent_->bus_->write_readv(address, write_buffer, write_count, read_buffer, read_count);
this->parent_->disable_all_channels();
return err;
}
i2c::ErrorCode TCA9548AChannel::writev(uint8_t address, i2c::WriteBuffer *buffers, size_t cnt, bool stop) {
auto err = this->parent_->switch_to_channel(channel_);
if (err != i2c::ERROR_OK)
return err;
err = this->parent_->bus_->writev(address, buffers, cnt, stop);
this->parent_->disable_all_channels();
return err;
}
void TCA9548AComponent::setup() {
uint8_t status = 0;
if (this->read(&status, 1) != i2c::ERROR_OK) {