as needed (or at least as we managed to add it — probably *not* all that is
needed).
+Human interfaces
+----------------
+
+.. toctree::
+ :maxdepth: 1
+
+ input/index
+ hid/index
+ sound/index
+ gpu/index
+ fb/index
+
+Storage interfaces
+------------------
+
+.. toctree::
+ :maxdepth: 1
+
+ filesystems/index
+ block/index
+ cdrom/index
+ scsi/index
+ target/index
+
**Fixme**: much more organizational work is needed here.
.. toctree::
core-api/index
locking/index
accounting/index
- block/index
- cdrom/index
cpu-freq/index
- fb/index
fpga/index
- hid/index
i2c/index
iio/index
isdn/index
networking/index
pcmcia/index
power/index
- target/index
timers/index
spi/index
w1/index
watchdog/index
virt/index
- input/index
hwmon/index
- gpu/index
accel/index
security/index
- sound/index
crypto/index
- filesystems/index
mm/index
bpf/index
usb/index
PCI/index
- scsi/index
misc-devices/index
scheduler/index
mhi/index