Specify 7-bit ASCII character encoding for GPIO names strings.
Fixes: https://github.com/oasis-tcs/virtio-spec/issues/115
Suggested-by: Stefan Hajnoczi <>
Signed-off-by: Viresh Kumar <>
---
V2:
- Use ASCII instead of UTF-8.
virtio-gpio.tex | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/virtio-gpio.tex b/virtio-gpio.tex
index 5da16d920aa3..3c614ec97b92 100644
--- a/virtio-gpio.tex
+++ b/virtio-gpio.tex
@@ -119,7 +119,8 @@ \subsubsection{requestq Operation: Get Line Names}\label{sec:Device Types / GPIO
order of the GPIO line numbers. The names of the GPIO lines are optional and may
be present only for a subset of GPIO lines. If missing, then a zero-byte must be
present for the GPIO line. If present, the name string must be zero-terminated
-and the name must be unique within a GPIO Device.
+and the name must be unique within a GPIO Device. The names of the GPIO lines
+are encoded in 7-bit ASCII.
These names of the GPIO lines should be most meaningful producer names for the
system, such as name indicating the usage. For example "MMC-CD", "Red LED Vdd"
--
2.31.1.272.g89b43f80a514
