diff options
| author | Bernd Walter <ticso@FreeBSD.org> | 2003-09-01 07:47:42 +0000 |
|---|---|---|
| committer | Bernd Walter <ticso@FreeBSD.org> | 2003-09-01 07:47:42 +0000 |
| commit | c4bc00e50954370bdd19911a4a2a07992e74f259 (patch) | |
| tree | 5a8e1a368fb2c6e26d8d96a9797f6ae03e8ebde3 /sys/dev | |
| parent | f02e8e8122a00fe079a942f8de5f35279451b707 (diff) | |
Notes
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/usb/usb_subr.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/dev/usb/usb_subr.c b/sys/dev/usb/usb_subr.c index 79a65c7bc642..ec88dc6a5a01 100644 --- a/sys/dev/usb/usb_subr.c +++ b/sys/dev/usb/usb_subr.c @@ -971,6 +971,7 @@ usbd_new_device(device_ptr_t parent, usbd_bus_handle bus, int depth, usbd_device_handle dev; struct usbd_device *hub; usb_device_descriptor_t *dd; + usb_port_status_t ps; usbd_status err; int addr; int i; @@ -1027,12 +1028,14 @@ usbd_new_device(device_ptr_t parent, usbd_bus_handle bus, int depth, up->device = dev; dd = &dev->ddesc; /* Try a few times in case the device is slow (i.e. outside specs.) */ - for (i = 0; i < 3; i++) { + for (i = 0; i < 15; i++) { /* Get the first 8 bytes of the device descriptor. */ err = usbd_get_desc(dev, UDESC_DEVICE, 0, USB_MAX_IPACKET, dd); if (!err) break; usbd_delay_ms(dev, 200); + if ((i & 3) == 3) + usbd_reset_port(up->parent, port, &ps); } if (err) { DPRINTFN(-1, ("usbd_new_device: addr=%d, getting first desc " |