diff options
Diffstat (limited to 'docs/usb_updater.md')
| -rw-r--r-- | docs/usb_updater.md | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/docs/usb_updater.md b/docs/usb_updater.md index 5eb2cc2086..476b50f316 100644 --- a/docs/usb_updater.md +++ b/docs/usb_updater.md @@ -4,10 +4,13 @@ EC update over USB chip/g (Cr50) and common code (hammer, servo_micro/v4) update over USB protocols share a lot in terms of protocol and ideas, but use different code bases. -chip/g EC-side implementation is found at `chip/g/*upgrade*`, and the userspace -updater is found in `extra/usb_updater/usb_updater.c`, while common code -uses implementations in `common/*update*.c` and `include/*update*.h`, and -`extra/usb_updater/usb_updater2.c` for the userspace updater. +chip/g EC-side implementation is found in `chip/g/*upgrade*`, and the +userspace tool which provides updates over USB among with supporting other +features and interfaces is found in `extra/usb_updater/gsctool.c`. + +Common code uses implementations in `common/*update*.c` and +`include/*update*.h`, and `extra/usb_updater/usb_updater2.c` for the userspace +updater. Cr50-specific notes ------------------- @@ -24,7 +27,7 @@ is restarted, the new RO and RW are used if they pass verification and are logically newer than the existing sections. There are two ways to communicate with the Cr50 device: USB and `/dev/tpm0` -(when `usb_updater` is running on a chromebook with the Cr50 device). Originally +(when `gsctool` is running on a chromebook with the Cr50 device). Originally different protocols were used to communicate over different channels, starting with version 3 the same protocol is used. |