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[usb] Improve debug messages for failed control transactions 

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown 2015-03-23 20:18:02 +00:00
parent b418af26d9
commit 026b3446b9
1 changed files with 5 additions and 6 deletions
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11
src/drivers/bus/usb.c
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@ -708,10 +708,6 @@ static void usb_control_complete ( struct usb_endpoint *ep,
/* Record completion status in buffer */
pshdr = iob_push ( iobuf, sizeof ( *pshdr ) );
pshdr->rc = rc;
if ( rc != 0 ) {
DBGC ( usb, "USB %s control transaction failed: %s\n",
usb->name, strerror ( rc ) );
}
/* Add to list of completed I/O buffers */
list_add_tail ( &iobuf->list, &usb->complete );
@ -793,6 +789,9 @@ int usb_control ( struct usb_device *usb, unsigned int request,
/* Fail immediately if completion was in error */
if ( rc != 0 ) {
DBGC ( usb, "USB %s control %04x:%04x:%04x "
"failed: %s\n", usb->name, request,
value, index, strerror ( rc ) );
free_iob ( cmplt );
return rc;
}
@ -809,8 +808,8 @@ int usb_control ( struct usb_device *usb, unsigned int request,
mdelay ( 1 );
}
DBGC ( usb, "USB %s timed out waiting for control transaction\n",
usb->name );
DBGC ( usb, "USB %s timed out waiting for control %04x:%04x:%04x\n",
usb->name, request, value, index );
return -ETIMEDOUT;
err_message: