am7xxx: support other devices which talk the same protocol

Add support for the Philips/Sagemcom PicoPix 1020, which has different
USB IDs.

diff --git a/src/am7xxx.c b/src/am7xxx.c
index b63067e..272a249 100644 (file)
--- a/src/am7xxx.c
+++ b/src/am7xxx.c
@@ -25,8 +25,26 @@
 #include "am7xxx.h"
 #include "serialize.h"
 
-#define AM7XXX_VENDOR_ID  0x1de1
-#define AM7XXX_PRODUCT_ID 0xc101
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
+struct am7xxx_usb_device_descriptor {
+       const char *name;
+       uint16_t vendor_id;
+       uint16_t product_id;
+};
+
+static struct am7xxx_usb_device_descriptor supported_devices[] = {
+       {
+               .name       = "Acer C110",
+               .vendor_id  = 0x1de1,
+               .product_id = 0xc101,
+       },
+       {
+               .name       = "Philips/Sagemcom PicoPix 1020",
+               .vendor_id  = 0x21e7,
+               .product_id = 0x000e,
+       },
+};
 
 /* The header size on the wire is known to be always 24 bytes, regardless of
  * the memory configuration enforced by different architechtures or compilers
@@ -311,9 +329,15 @@ am7xxx_device *am7xxx_init(void)
        libusb_init(NULL);
        libusb_set_debug(NULL, 3);
 
-       dev->usb_device = libusb_open_device_with_vid_pid(NULL,
-                                             AM7XXX_VENDOR_ID,
-                                             AM7XXX_PRODUCT_ID);
+       for (i = 0; i < ARRAY_SIZE(supported_devices); i++) {
+               dev->usb_device = libusb_open_device_with_vid_pid(NULL,
+                                                     supported_devices[i].vendor_id,
+                                                     supported_devices[i].product_id);
+               if (dev->usb_device) {
+                       printf("%s: device found: %s\n", __func__, supported_devices[i].name);
+                       break;
+               }
+       }
        if (dev->usb_device == NULL) {
                errno = ENODEV;
                perror("libusb_open_device_with_vid_pid");