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path: root/drivers/usb/host/uhci-hcd.c
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Diffstat (limited to 'drivers/usb/host/uhci-hcd.c')
-rw-r--r--drivers/usb/host/uhci-hcd.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index e87692c31be4..acd101caeeeb 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -60,6 +60,11 @@ Randy Dunlap, Georg Acher, Deti Fliegl, Thomas Sailer, Roman Weissgaerber, \
60Alan Stern" 60Alan Stern"
61#define DRIVER_DESC "USB Universal Host Controller Interface driver" 61#define DRIVER_DESC "USB Universal Host Controller Interface driver"
62 62
63/* for flakey hardware, ignore overcurrent indicators */
64static int ignore_oc;
65module_param(ignore_oc, bool, S_IRUGO);
66MODULE_PARM_DESC(ignore_oc, "ignore hardware overcurrent indications");
67
63/* 68/*
64 * debug = 0, no debugging messages 69 * debug = 0, no debugging messages
65 * debug = 1, dump failed URBs except for stalls 70 * debug = 1, dump failed URBs except for stalls
@@ -169,6 +174,11 @@ static int resume_detect_interrupts_are_broken(struct uhci_hcd *uhci)
169{ 174{
170 int port; 175 int port;
171 176
177 /* If we have to ignore overcurrent events then almost by definition
178 * we can't depend on resume-detect interrupts. */
179 if (ignore_oc)
180 return 1;
181
172 switch (to_pci_dev(uhci_dev(uhci))->vendor) { 182 switch (to_pci_dev(uhci_dev(uhci))->vendor) {
173 default: 183 default:
174 break; 184 break;
@@ -921,7 +931,8 @@ static int __init uhci_hcd_init(void)
921{ 931{
922 int retval = -ENOMEM; 932 int retval = -ENOMEM;
923 933
924 printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION "\n"); 934 printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION "%s\n",
935 ignore_oc ? ", overcurrent ignored" : "");
925 936
926 if (usb_disabled()) 937 if (usb_disabled())
927 return -ENODEV; 938 return -ENODEV;