luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

xhci: Don't warn about zeroed bMaxBurst descriptor field.

Browse Source 
The USB 3.0 specification says that the bMaxBurst field in the SuperSpeed
Endpoint Companion descriptor is supposed to indicate how many packets a
SS device can handle before it needs to wait for an explicit handshake
from the host controller.  A zero value means the device can only handle
one packet before it needs a handshake.  Remove a warning in the xHCI
driver that implies this is an invalid value.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This commit is contained in:
Sarah Sharp 2011-06-06 00:53:47 -07:00
parent fccf4e8620
commit d23336329f
1 changed files with 0 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/host/xhci-mem.c
View File

@ -1215,8 +1215,6 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet));
/* dig out max burst from ep companion desc */
max_packet = ep->ss_ep_comp.bMaxBurst;
if (!max_packet)
xhci_warn(xhci, "WARN no SS endpoint bMaxBurst\n");
ep_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(max_packet));
break;
case USB_SPEED_HIGH: