ACPR/android_system_core
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

adb: Use correct language ID when retrieving USB serial number.

Browse source 
Fixes http://code.google.com/p/android/issues/detail?id=2609

Signed-off-by: Mike Lockwood <lockwood@android.com>
This commit is contained in:
Mike Lockwood 2009-07-08 09:43:49 -04:00
parent b3edd0720e
commit 3d9b265b7d
1 changed files with 32 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

44
adb/usb_linux.c
View file

@ -269,26 +269,46 @@ static int find_usb_device(const char *base,
if (device->iSerialNumber) {
struct usbdevfs_ctrltransfer ctrl;
__u16 buffer[128];
int result;
__u16 languages[128];
int i, result;
int languageCount = 0;
memset(buffer, 0, sizeof(buffer));
memset(languages, 0, sizeof(languages));
memset(&ctrl, 0, sizeof(ctrl));
// read list of supported languages
ctrl.bRequestType = USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE;
ctrl.bRequest = USB_REQ_GET_DESCRIPTOR;
ctrl.wValue = (USB_DT_STRING << 8) | device->iSerialNumber;
ctrl.wValue = (USB_DT_STRING << 8) | 0;
ctrl.wIndex = 0;
ctrl.wLength = sizeof(buffer);
ctrl.data = buffer;
ctrl.wLength = sizeof(languages);
ctrl.data = languages;
result = ioctl(fd, USBDEVFS_CONTROL, &ctrl);
if (result > 0) {
int i;
// skip first word, and copy the rest to the serial string, changing shorts to bytes.
result /= 2;
for (i = 1; i < result; i++)
serial[i - 1] = buffer[i];
serial[i - 1] = 0;
if (result > 0)
languageCount = (result - 2) / 2;
for (i = 1; i <= languageCount; i++) {
memset(buffer, 0, sizeof(buffer));
memset(&ctrl, 0, sizeof(ctrl));
ctrl.bRequestType = USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE;
ctrl.bRequest = USB_REQ_GET_DESCRIPTOR;
ctrl.wValue = (USB_DT_STRING << 8) | device->iSerialNumber;
ctrl.wIndex = languages[i];
ctrl.wLength = sizeof(buffer);
ctrl.data = buffer;
result = ioctl(fd, USBDEVFS_CONTROL, &ctrl);
if (result > 0) {
int i;
// skip first word, and copy the rest to the serial string, changing shorts to bytes.
result /= 2;
for (i = 1; i < result; i++)
serial[i - 1] = buffer[i];
serial[i - 1] = 0;
break;
}
}
}