V4L/DVB (6708): pvrusb2: Expand comment in device attributes description

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/video/pvrusb2/pvrusb2-devattr.h b/drivers/media/video/pvrusb2/pvrusb2-devattr.h
index 830f27961e1ecddb2f35cc2f1521f7a581fd6ccd..a9c3d99b602df4d274bfa35b925361d2d69e309b 100644 (file)
--- a/drivers/media/video/pvrusb2/pvrusb2-devattr.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-devattr.h
@@ -94,7 +94,13 @@ struct pvr2_device_desc {
        char flag_has_wm8775;
 
        /* Device has IR hardware that can be faked into looking like a
-          normal Hauppauge i2c IR receiver. */
+          normal Hauppauge i2c IR receiver.  This is currently very
+          specific to the 24xxx device, where Hauppauge had replaced their
+          'standard' I2C IR receiver with a bunch of FPGA logic controlled
+          directly via the FX2.  Turning this on tells the pvrusb2 driver
+          to virtualize the presence of the non-existant IR receiver chip and
+          implement the virtual receiver in terms of appropriate FX2
+          commands. */
        char flag_has_hauppauge_custom_ir;
 };