ref: 4d5d86a6a228f88847d3d62a43ac9b3011cdb166
parent: 977b3952fba3e9ddc347ccb1b055783489e00f98
author: cinap_lenrek <cinap_lenrek@felloff.net>
date: Wed Feb 10 14:52:00 EST 2021
nusb: don't create rw iso endpoints (by Michael Forney) There may be two iso endpoints with the same ID if it is asynchronous or adaptive (one for data, one for feedback), and rw iso endpoints are unusable (error out with "iso i/o is half-duplex").
--- a/sys/src/cmd/nusb/lib/parse.c
+++ b/sys/src/cmd/nusb/lib/parse.c
@@ -127,7 +127,7 @@
ep = mkep(d, epid);
ep->dir = dir;
}else if((ep->addr & 0x80) != (addr & 0x80)){- if(ep->type == type)
+ if(ep->type == type && type != Eiso)
ep->dir = Eboth;
else {/*
--
⑨