Repository: mne-tools/mne-python

Issue:
Initialise coil types
How to initialize coil types in info object?

```
chans = mne.channels.read_montage('BrainAmpMRIPlus_32sfp', ch_names=None, path= datapath, unit='mm', transform=False)

chanNames = chans.ch_names
info = mne.create_info(chanNames, 250.0, ch_types='eeg')
layout = mne.channels.find_layout(info, ch_type='eeg', exclude=None)

eventOnset = np.array(range(1,41))*2
eventZero = np.ones(40)
eventId = np.ones(40)
events = np.transpose(np.vstack((eventOnset, eventZero, eventId)))

epochs = mne.EpochsArray(cueLtemp, info, events, tmin=0, event_id=None, reject=None, flat=None, reject_tmin=None, reject_tmax=None, verbose=None)

epochs.set_montage(chans)

epochs.plot_projs_topomap(ch_type='eeg', layout=layout)
```

I get RuntimeError: No EEG channels present. Cannot find EEG layout. when I run mne.channels.find_layout()
If I use create_info with ch_types = 'eeg' shouldn't the coil type be eeg also? what exactly is the coil type and coil trans anyway? Should they be initialised?
Since I am learning mne is all this stuff explained somewhere or is this the only place I can ask questions? I went through the examples and they all use standard data sets. I am coming from matlab and my data is preprocessed in matlab.
Thanks for helping me out guys

Discussion:

Patch:
diff --git a/mne/io/meas_info.py b/mne/io/meas_info.py
index 6e850b71a..b55a983b6 100644
--- a/mne/io/meas_info.py
+++ b/mne/io/meas_info.py
@@ -31,7 +31,7 @@ from ..externals.six import b, BytesIO, string_types, text_type
 
 
 _kind_dict = dict(
-    eeg=(FIFF.FIFFV_EEG_CH, FIFF.FIFFV_COIL_NONE, FIFF.FIFF_UNIT_V),
+    eeg=(FIFF.FIFFV_EEG_CH, FIFF.FIFFV_COIL_EEG, FIFF.FIFF_UNIT_V),
     mag=(FIFF.FIFFV_MEG_CH, FIFF.FIFFV_COIL_VV_MAG_T3, FIFF.FIFF_UNIT_T),
     grad=(FIFF.FIFFV_MEG_CH, FIFF.FIFFV_COIL_VV_PLANAR_T1, FIFF.FIFF_UNIT_T_M),
     misc=(FIFF.FIFFV_MISC_CH, FIFF.FIFFV_COIL_NONE, FIFF.FIFF_UNIT_NONE),


Test patch:
diff --git a/mne/io/tests/test_meas_info.py b/mne/io/tests/test_meas_info.py
index 7668f36dd..588ac65a1 100644
--- a/mne/io/tests/test_meas_info.py
+++ b/mne/io/tests/test_meas_info.py
@@ -24,6 +24,15 @@ hsp_fname = op.join(data_dir, 'test_hsp.txt')
 elp_fname = op.join(data_dir, 'test_elp.txt')
 
 
+def test_make_info():
+    """Test some create_info properties
+    """
+    n_ch = 1
+    info = create_info(n_ch, 1000., 'eeg')
+    coil_types = set([ch['coil_type'] for ch in info['chs']])
+    assert_true(FIFF.FIFFV_COIL_EEG in coil_types)
+
+
 def test_fiducials_io():
     """Test fiducials i/o"""
     tempdir = _TempDir()