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Don't perform an endpoint stall clear every time a pipe is opened.

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This should not be necessary, and it is known to confuse certain
devices.

Obtained from:	NetBSD
Requested by:	many
This commit is contained in:
Ian Dowse 2006-01-08 03:27:43 +00:00
parent 23db0a33f7
commit dd35c3642c
1 changed files with 0 additions and 17 deletions
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17
sys/dev/usb/usb_subr.c
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@ -779,23 +779,6 @@ usbd_setup_pipe(usbd_device_handle dev, usbd_interface_handle iface,
return (err);
}
if (!(dev->quirks->uq_flags & UQ_NO_OPEN_CLEARSTALL)) {
/* Clear any stall and make sure DATA0 toggle will be used next. */
if (UE_GET_ADDR(ep->edesc->bEndpointAddress) != USB_CONTROL_ENDPOINT) {
err = usbd_clear_endpoint_stall(p);
/*
* Some devices reject this command, so ignore a STALL.
* Some device just time out on this command, so ignore
* that too.
*/
if (err && err != USBD_STALLED && err != USBD_TIMEOUT) {
printf("usbd_setup_pipe: failed to start "
"endpoint, %s\n", usbd_errstr(err));
return (err);
}
}
}
*pipe = p;
return (USBD_NORMAL_COMPLETION);
}