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libertas: EHS_REMOVE_WAKEUP is not always supported

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Certain firmware versions, particularly the 8388 found on the XO-1,
do not support the EHS_REMOVE_WAKEUP command that is used to disable
WOL. Sending this command to the card will return a failure that
would get propagated up the stack and cause suspend to fail.

Instead, fall back to an all-zero wakeup mask.

This fixes http://dev.laptop.org/ticket/9967

Signed-off-by: Deepak Saxena <dsaxena@laptop.org>
Signed-off-by: Daniel Drake <dsd@laptop.org>
[includes fixups by Paul Fox]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Deepak Saxena
2010-10-31 13:40:33 +00:00
committed by John W. Linville
parent cf43298864
commit ae63a33ec9
4 changed files with 18 additions and 1 deletions
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7
drivers/net/wireless/libertas/if_usb.c
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@@ -345,6 +345,13 @@ static int if_usb_probe(struct usb_interface *intf,
if (device_create_file(&priv->dev->dev, &dev_attr_lbs_flash_boot2))
lbs_pr_err("cannot register lbs_flash_boot2 attribute\n");
/*
* EHS_REMOVE_WAKEUP is not supported on all versions of the firmware.
*/
priv->wol_criteria = EHS_REMOVE_WAKEUP;
if (lbs_host_sleep_cfg(priv, priv->wol_criteria, NULL))
priv->ehs_remove_supported = false;
return 0;
err_start_card: