diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2021-02-10 20:08:13 +0100 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2021-02-10 20:08:13 +0100 |
| commit | 2f28aaac65b4dde059f393222bfd2f939d83f9f5 (patch) | |
| tree | 3767e9061c1c2e39860b580005e8e9cdd59e7922 /sys/src/cmd/nusb/lib/parse.c | |
| parent | d7ade692c8c3c96bae6828f63afb1b19765b5589 (diff) | |
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").
Diffstat (limited to 'sys/src/cmd/nusb/lib/parse.c')
| -rw-r--r-- | sys/src/cmd/nusb/lib/parse.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/sys/src/cmd/nusb/lib/parse.c b/sys/src/cmd/nusb/lib/parse.c index 916da0b3e..4b795bf7c 100644 --- a/sys/src/cmd/nusb/lib/parse.c +++ b/sys/src/cmd/nusb/lib/parse.c @@ -111,8 +111,6 @@ parseendpt(Usbdev *d, Conf *c, Iface *ip, Altc *altc, uchar *b, int n, Ep **epp) return -1; } dep = (DEp *)b; - altc->attrib = dep->bmAttributes; /* here? */ - altc->interval = dep->bInterval; type = dep->bmAttributes & 0x03; addr = dep->bEndpointAddress; @@ -145,13 +143,18 @@ parseendpt(Usbdev *d, Conf *c, Iface *ip, Altc *altc, uchar *b, int n, Ep **epp) ep->maxpkt = GET2(dep->wMaxPacketSize); ep->ntds = 1 + ((ep->maxpkt >> 11) & 3); ep->maxpkt &= 0x7FF; - altc->maxpkt = ep->maxpkt; - altc->ntds = ep->ntds; ep->addr = addr; ep->type = type; ep->isotype = (dep->bmAttributes>>2) & 0x03; + ep->isousage = (dep->bmAttributes>>4) & 0x03; ep->conf = c; ep->iface = ip; + if(ep->type != Eiso || ep->isousage == Edata || ep->isousage == Eimplicit){ + altc->attrib = dep->bmAttributes; + altc->interval = dep->bInterval; + altc->maxpkt = ep->maxpkt; + altc->ntds = ep->ntds; + } for(i = 0; i < nelem(ip->ep); i++) if(ip->ep[i] == nil) break; |