diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2017-04-01 22:19:58 +0200 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2017-04-01 22:19:58 +0200 |
| commit | e0087b2a78d7229d8d2b148b8def688be6639797 (patch) | |
| tree | 9b9f1a6a0939586a58251a9c89c3976f797ae07b /sys/src/cmd/nusb/serial/ftdi.c | |
| parent | 25725eb0adc6902318e63da0eca9123be4d4f93d (diff) | |
nusb/lib: make usbcmd() return value symmetic; returning size of data phase (if any) (thanks aiju)
usbcmd() with Rh2d used to return the command size (8+ndata) wile returning
only ndata for Rd2h. this changes it to always return ndata for Rh2d. it
mostly doesnt matter as Rh2d callers only check r < 0 for error, but this
makes the interface symmetic.
Diffstat (limited to 'sys/src/cmd/nusb/serial/ftdi.c')
| -rw-r--r-- | sys/src/cmd/nusb/serial/ftdi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/src/cmd/nusb/serial/ftdi.c b/sys/src/cmd/nusb/serial/ftdi.c index 3affcf39f..cbe0d035e 100644 --- a/sys/src/cmd/nusb/serial/ftdi.c +++ b/sys/src/cmd/nusb/serial/ftdi.c @@ -858,7 +858,7 @@ ftdiread(Serialport *p, int index, int req, uchar *buf, int len) index |= p->interfc + 1; dsprint(2, "serial: ftdiread %#p [%d] req: %#x val: %#x idx:%d buf:%p len:%d\n", p, p->interfc, req, 0, index, buf, len); - res = usbcmd(ser->dev, Rd2h | Rftdireq | Rdev, req, 0, index, buf, len); + res = usbcmd(ser->dev, Rd2h | Rftdireq | Rdev, req, 0, index, buf, len); dsprint(2, "serial: ftdiread res:%d\n", res); return res; } |