diff options
| author |   patrick <patrick@openbsd.org> | 2016-05-18 18:28:58 +0000 |
|---|---|---|
| committer | patrick <patrick@openbsd.org> | 2016-05-18 18:28:58 +0000 |
| commit | 2261702e3e2071d9ebf81d37fead1cc3f6b7f5be (patch) | |
| tree | d521e1a1cf935ff78975b372d18845939f2a4018 /sys/dev/usb/usb.c | |
| parent | update links; from ray (diff) | |
| download | wireguard-openbsd-2261702e3e2071d9ebf81d37fead1cc3f6b7f5be.tar.xz wireguard-openbsd-2261702e3e2071d9ebf81d37fead1cc3f6b7f5be.zip | |
Cache vendor, product and serial info for each usb device. This allows
ioctl(USB_DEVICEINFO) not to issue any further requests to gather
information. Thus reducing stress on connected usb devices.
This fixes an issue where usbdevs called in a loop causes a USB mass
storage device to halt operation.
Adapted from a similar commit in NetBSD.
ok mpi@
Diffstat (limited to 'sys/dev/usb/usb.c')
| -rw-r--r-- | sys/dev/usb/usb.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/dev/usb/usb.c b/sys/dev/usb/usb.c index 732ecfdbb27..e0d7992571c 100644 --- a/sys/dev/usb/usb.c +++ b/sys/dev/usb/usb.c @@ -1,4 +1,4 @@ -/* $OpenBSD: usb.c,v 1.110 2016/03/03 18:13:24 stefan Exp $ */ +/* $OpenBSD: usb.c,v 1.111 2016/05/18 18:28:58 patrick Exp $ */ /* $NetBSD: usb.c,v 1.77 2003/01/01 00:10:26 thorpej Exp $ */ /* @@ -520,7 +520,7 @@ usb_fill_di_task(void *arg) if (dev == NULL) return; - usbd_fill_deviceinfo(dev, di, 1); + usbd_fill_deviceinfo(dev, di, 0); } void |