diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-udc | 16 | ||||
| -rw-r--r-- | Documentation/networking/filter.txt | 4 |
2 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-udc b/Documentation/ABI/testing/sysfs-class-udc new file mode 100644 index 000000000000..1b9c566d0552 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-udc @@ -0,0 +1,16 @@ +What: /sys/class/udc/<udc name>/device/usb_data_enabled +Date: December 2020 +Contact: "Ray Chi" <raychi@google.com> +Description: + The attribute can allow user space can check and modify + the value to enable or disable usb functionality. Therefore, + if the attritube is set to 0, USB host and USB peripheral + modes wouldn't be working. + + Example: + Enable USB data functionality + # echo 1 > /sys/class/udc/.../device/usb_data_enabled + + Disable USB data functionality + # echo 0 > /sys/class/udc/.../device/usb_data_enabled + diff --git a/Documentation/networking/filter.txt b/Documentation/networking/filter.txt index 96da119a47e7..4e3e22b053cc 100644 --- a/Documentation/networking/filter.txt +++ b/Documentation/networking/filter.txt @@ -907,6 +907,10 @@ If BPF_CLASS(code) == BPF_JMP, BPF_OP(code) is one of: BPF_JSGE 0x70 /* eBPF only: signed '>=' */ BPF_CALL 0x80 /* eBPF only: function call */ BPF_EXIT 0x90 /* eBPF only: function return */ + BPF_JLT 0xa0 /* eBPF only: unsigned '<' */ + BPF_JLE 0xb0 /* eBPF only: unsigned '<=' */ + BPF_JSLT 0xc0 /* eBPF only: signed '<' */ + BPF_JSLE 0xd0 /* eBPF only: signed '<=' */ So BPF_ADD | BPF_X | BPF_ALU means 32-bit addition in both classic BPF and eBPF. There are only two registers in classic BPF, so it means A += X. |