commit a133367ec1b689410f1e7427921e33bb1b569bd7
author Cortland Tölva <cst@tolva.net> Mon Oct 08 09:35:21 2018 -0700
committer Laurent Vivier <laurent@vivier.eu> Fri Oct 19 14:05:10 2018 +0200
tree df327f4841e0e50178dd440f0c84c49012b6fda9
parent 6c753a63eda27f2a35bda211d1fa490aebbc7459

linux-user: Implement special usbfs ioctls.

Userspace submits a USB Request Buffer to the kernel, optionally
discards it, and finally reaps the URB.  Thunk buffers from target
to host and back.

Tested by running an i386 scanner driver on ARMv7 and by running
the PowerPC lsusb utility on x86_64.  The discardurb ioctl is
not exercised in these tests.

Signed-off-by: Cortland Tölva <cst@tolva.net>
Message-Id: <20181008163521.17341-4-cst@tolva.net>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/syscall_types.h

diff --git a/linux-user/syscall_types.h b/linux-user/syscall_types.h
index 6f64a8b..b98a23b 100644
--- a/linux-user/syscall_types.h
+++ b/linux-user/syscall_types.h
@@ -300,6 +300,26 @@
         TYPE_INT, /* devnum */
         TYPE_CHAR) /* slow */
 
+STRUCT(usbdevfs_iso_packet_desc,
+        TYPE_INT, /* length */
+        TYPE_INT, /* actual_length */
+        TYPE_INT) /* status */
+
+STRUCT(usbdevfs_urb,
+        TYPE_CHAR, /* type */
+        TYPE_CHAR, /* endpoint */
+        TYPE_INT, /* status */
+        TYPE_INT, /* flags */
+        TYPE_PTRVOID, /* buffer */
+        TYPE_INT, /* buffer_length */
+        TYPE_INT, /* actual_length */
+        TYPE_INT, /* start_frame */
+        TYPE_INT, /* union number_of_packets stream_id */
+        TYPE_INT, /* error_count */
+        TYPE_INT, /* signr */
+        TYPE_PTRVOID, /* usercontext */
+        MK_ARRAY(MK_STRUCT(STRUCT_usbdevfs_iso_packet_desc), 0)) /* desc */
+
 STRUCT(usbdevfs_ioctl,
         TYPE_INT, /* ifno */
         TYPE_INT, /* ioctl_code */