This patch adds Documentation/ABI/testing/sysfs-bus-i2c which documents the existing i2c sysfs ABI.
Signed-off-by: Octavian Purdila <[email protected]> --- Documentation/ABI/testing/sysfs-bus-i2c | 45 +++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-i2c diff --git a/Documentation/ABI/testing/sysfs-bus-i2c b/Documentation/ABI/testing/sysfs-bus-i2c new file mode 100644 index 0000000..8075585 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-i2c @@ -0,0 +1,45 @@ +What: /sys/bus/i2c/devices/i2c-X +KernelVersion: since at least 2.6.12 +Contact: [email protected] +Description: + This entry represents a registered i2c bus. X is the + bus number and its format is "%d". + +What: /sys/bus/i2c/devices/i2c-X/Y +What: /sys/bus/i2c/devices/Y +KernelVersion: since at least 2.6.12 +Contact: [email protected] +Description: + An i2c device attached to bus X. Format of Y is + "%d-%04x" where the first number is the bus number (X) + and the second number is the device i2c address. + +What: /sys/bus/i2c/devices/i2c-X/new_device +KernelVersion: 2.6.31 +Contact: [email protected] +Description: + Write only entry that allows instantiating a + new i2c device on bus X. This is to be used when + enumeration mechanism such as ACPI or DT are not + present or not used for this device. + Format: "%s %hi\n" where the first argument is the + device name (no spaces allowed) and the second is the + i2c address of the device. + +What: /sys/bus/i2c/devices/i2c-X/delete_device +KernelVersion: 2.6.31 +Contact: [email protected] +Description: + Write only entry that allows the removal of an i2c + device from bus X. + Format: "%s %hi\n" where the first argument is the + device name (no spaces allowed) and the second is the + i2c address of the device. + +What: /sys/bus/i2c/devices/i2c-X/i2c-Y +What: /sys/bus/i2c/devices/i2c-Y +KernelVersion: 3.13 +Contact: [email protected] +Description: + An i2c device attached to bus X that is enumerated via + ACPI. Y is the ACPI device name and its format is "%s". -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
