Add Task 11 description

Task11/task11.txt

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+This is Task 11 of the Eudyptula Challenge
+------------------------------------------
+
+You made a successful patch to the kernel source tree, that's a great
+step!
+
+But, let's not rest, time to get back to code.
+
+Remember that mess of kobject and sysfs code back in task 09?  Let's
+move one level up the tree and start to mess with devices and not raw
+kobjects.
+
+For this task:
+  - Write a patch against any driver that you are currently using on
+    your machine.  So first you have to figure out which drivers you are
+    using, and where the source code in the kernel tree is for that
+    driver.
+  - In that driver, add a sysfs file to show up in the /sys/devices/
+    tree for the device that is called "id".  As you might expect, this
+    file follows the same rules as task 09 as for what you can read and
+    write to it.
+  - The file is to show up only for devices that are controlled by a
+    single driver, not for all devices of a single type (like all USB
+    devices.  But all USB mailbox LEDs would be acceptable, if you
+    happen to have the device that that driver controls.)
+
+Submit both the patch, in proper kernel commit form, and "proof" of it
+working properly on your machine.
+
+And as always, please use your id in the subject line.  If you happened
+to forget it, as it has been a while since I reminded you of it, it is
+"[redacted]".