Merge tag 'mmc-5-20' of https://github.com/MrVan/u-boot

[oweals/u-boot.git] / include / linux / usb / cdc.h

diff --git a/include/linux/usb/cdc.h b/include/linux/usb/cdc.h
index 2967284274935aae238a834ca510669a34d5e37c..442316b4e2cf629aaf9196fdda6fdde8c0a2114b 100644 (file)
--- a/include/linux/usb/cdc.h
+++ b/include/linux/usb/cdc.h
@@ -5,7 +5,7 @@
  * notably ethernet adapters and various modems.  It's used mostly with
  * firmware based USB peripherals.
  *
- * Ported to U-boot by: Thomas Smits <ts.smits@gmail.com> and
+ * Ported to U-Boot by: Thomas Smits <ts.smits@gmail.com> and
  *                      Remy Bohmer <linux@bohmer.net>
  */
 
@@ -158,6 +158,9 @@ struct usb_cdc_mdlm_detail_desc {
  *
  * section 3.6.2.1 table 4 has the ACM profile, for modems.
  * section 3.8.2 table 10 has the ethernet profile.
+ *
+ * Microsoft's RNDIS stack for Ethernet is a vendor-specific CDC ACM variant,
+ * heavily dependent on the encapsulated (proprietary) command mechanism.
  */
 
 #define USB_CDC_SEND_ENCAPSULATED_COMMAND      0x00
@@ -203,7 +206,8 @@ struct usb_cdc_line_coding {
  * Class-Specific Notifications (6.3) sent by interrupt transfers
  *
  * section 3.8.2 table 11 of the CDC spec lists Ethernet notifications
- * section 3.6.2.1 table 5 specifies ACM notifications
+ * section 3.6.2.1 table 5 specifies ACM notifications, accepted by RNDIS
+ * RNDIS also defines its own bit-incompatible notifications
  */
 
 #define USB_CDC_NOTIFY_NETWORK_CONNECTION      0x00