On Mon, 25 Oct 2004, Gideon N. Guillen wrote:
> Hello,
>
> This is a followup to the thread regarding my USB keyboard problem.
> See the following link for the previous thread:
> http://sourceforge.net/mailarchive/message.php?msg_id=9751633
>
> Anyway, this time, I tried the latest kernel release (2.6.9) and also
> use the .config file that came with Fedora 2.6.8. I've encountered the
> same problems.
>
> Overview of the problem:
> With the USB keyboard plugged-in, FC2 would just freeze on "Mounting
> USB filesystem" on the init script/bootup. If I plug the keyboard when
> the system is booted up, any attempt to plug-in other usb devices will
> cause detection to fail. This is because, when the keybord is attached
> on kernel >= 2.6.7, /proc/bus/usb/devices gets corrupted and/or
> unreadable, this the freezing on the init script (the part where it's
> grepping on /proc/bus/usb/devices) and the usb hot plug not working
> because it's also readubg the same file.
Please try applying the patch below, and then post the dmesg output you
get when plugging the keyboard in after bootup.
Alan Stern
===== drivers/usb/input/hid-core.c 1.131 vs edited =====
--- 1.131/drivers/usb/input/hid-core.c 2004-10-01 15:12:41 -04:00
+++ edited/drivers/usb/input/hid-core.c 2004-10-25 12:12:20 -04:00
@@ -1146,6 +1146,7 @@
warn("output irq status %d received", urb->status);
}
+printk(KERN_INFO "%s: %d\n", __FUNCTION__, urb->status);
spin_lock_irqsave(&hid->outlock, flags);
hid->outtail = (hid->outtail + 1) & (HID_OUTPUT_FIFO_SIZE - 1);
@@ -1159,6 +1160,7 @@
return;
}
+printk(KERN_INFO "clear HID_OUT_RUNNING\n");
clear_bit(HID_OUT_RUNNING, &hid->iofl);
spin_unlock_irqrestore(&hid->outlock, flags);
wake_up(&hid->wait);
@@ -1173,6 +1175,7 @@
struct hid_device *hid = urb->context;
unsigned long flags;
+printk(KERN_INFO "%s: %d\n", __FUNCTION__, urb->status);
spin_lock_irqsave(&hid->ctrllock, flags);
switch (urb->status) {
@@ -1199,6 +1202,7 @@
return;
}
+printk(KERN_INFO "clear HID_CTRL_RUNNING\n");
clear_bit(HID_CTRL_RUNNING, &hid->iofl);
spin_unlock_irqrestore(&hid->ctrllock, flags);
wake_up(&hid->wait);
@@ -1269,6 +1273,7 @@
set_current_state(TASK_RUNNING);
remove_wait_queue(&hid->wait, &wait);
+printk(KERN_INFO "%s: %d\n", __FUNCTION__, timeout);
if (!timeout) {
dbg("timeout waiting for ctrl or out queue to clear");
return -1;
@@ -1353,9 +1358,13 @@
while (ret) {
err |= ret;
if (test_bit(HID_CTRL_RUNNING, &hid->iofl))
+{printk(KERN_INFO "%s: kill ctrl urb\n", __FUNCTION__);
usb_kill_urb(hid->urbctrl);
+printk(KERN_INFO "kill done\n");}
if (test_bit(HID_OUT_RUNNING, &hid->iofl))
+{printk(KERN_INFO "%s: kill intr-out urb\n", __FUNCTION__);
usb_kill_urb(hid->urbout);
+printk(KERN_INFO "kill done\n");}
ret = hid_wait_io(hid);
}
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