usb_util.c

A set of functions for getting information for a single USB device,
or a list of all devices.

The only implemented method is using `lsusb`, which is slow. A
method using sysfs would be much better. The existing sysfs and
procfs methods in devices/usb.c do not appear to work, so it would
have to be something new.

devices/usb.c modified to use usb_util, but all the old code is
still there.

Signed-off-by: Burt P <pburt0@gmail.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/includes/usb_util.h b/includes/usb_util.h
new file mode 100644
index 00000000..5d7f55bf
--- /dev/null
+++ b/includes/usb_util.h
@@ -0,0 +1,35 @@
+#ifndef __USB_UTIL_H__
+#define __USB_UTIL_H__
+
+/* this is a linked list */
+typedef struct usbd {
+    int bus, dev;
+    int vendor_id, product_id;
+    char *vendor;
+    char *product;
+
+    int dev_class;
+    int dev_subclass;
+    char *dev_class_str;
+    char *dev_subclass_str;
+
+    char *usb_version;
+    char *device_version; /* bcdDevice */
+
+    int max_curr_ma;
+
+    int speed_mbs; /* TODO: */
+
+    int user_scan; /* not scanned as root */
+
+    struct usbd *next;
+} usbd;
+
+usbd *usb_get_device_list();
+int usbd_list_count(usbd *);
+void usbd_list_free(usbd *);
+
+usbd *usb_get_device(int bus, int dev);
+void usbd_free(usbd *);
+
+#endif