diff options
Diffstat (limited to 'Documentation/i2c/smbus-protocol')
| -rw-r--r-- | Documentation/i2c/smbus-protocol | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/Documentation/i2c/smbus-protocol b/Documentation/i2c/smbus-protocol index 14d4ec1be245..092d474f5843 100644 --- a/Documentation/i2c/smbus-protocol +++ b/Documentation/i2c/smbus-protocol @@ -200,10 +200,14 @@ alerting device's address. [S] [HostAddr] [Wr] A [DevAddr] A [DataLow] A [DataHigh] A [P] This is implemented in the following way in the Linux kernel: -* I2C bus drivers which support SMBus Host Notify should call - i2c_setup_smbus_host_notify() to setup SMBus Host Notify support. -* I2C drivers for devices which can trigger SMBus Host Notify should implement - the optional alert() callback. +* I2C bus drivers which support SMBus Host Notify should report + I2C_FUNC_SMBUS_HOST_NOTIFY. +* I2C bus drivers trigger SMBus Host Notify by a call to + i2c_handle_smbus_host_notify(). +* I2C drivers for devices which can trigger SMBus Host Notify will have + client->irq assigned to a Host Notify IRQ if noone else specified an other. + +There is currently no way to retrieve the data parameter from the client. Packet Error Checking (PEC) |