diff options
Diffstat (limited to 'Documentation/ABI/stable/sysfs-bus-mhi')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-bus-mhi | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-bus-mhi b/Documentation/ABI/stable/sysfs-bus-mhi index 1a47f9e0cc..8b9698fa0b 100644 --- a/Documentation/ABI/stable/sysfs-bus-mhi +++ b/Documentation/ABI/stable/sysfs-bus-mhi @@ -29,3 +29,16 @@ Description: Initiates a SoC reset on the MHI controller. A SoC reset is This can be useful as a method of recovery if the device is non-responsive, or as a means of loading new firmware as a system administration task. + +What: /sys/bus/mhi/devices/.../trigger_edl +Date: April 2024 +KernelVersion: 6.10 +Contact: mhi@lists.linux.dev +Description: Writing a non-zero value to this file will force devices to + enter EDL (Emergency Download) mode. This entry only exists for + devices capable of entering the EDL mode using the standard EDL + triggering mechanism defined in the MHI spec v1.2. Once in EDL + mode, the flash programmer image can be downloaded to the + device to enter the flash programmer execution environment. + This can be useful if user wants to use QDL (Qualcomm Download, + which is used to download firmware over EDL) to update firmware. |