diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/usb_storage.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/common/usb_storage.c b/common/usb_storage.c index e64470c..69ecf18 100644 --- a/common/usb_storage.c +++ b/common/usb_storage.c @@ -916,6 +916,28 @@ static int usb_read_10(ccb *srb,struct us_data *ss, unsigned long start, unsigne } +#ifdef CONFIG_USB_BIN_FIXUP +/* + * Some USB storage devices queried for SCSI identification data respond with + * binary strings, which if output to the console freeze the terminal. The + * workaround is to modify the vendor and product strings read from such + * device with proper values (as reported by 'usb info'). + * + * Vendor and product length limits are taken from the definition of + * block_dev_desc_t in include/part.h. + */ +static void usb_bin_fixup(struct usb_device_descriptor descriptor, + unsigned char vendor[], + unsigned char product[]) { + const unsigned char max_vendor_len = 40; + const unsigned char max_product_len = 20; + if (descriptor.idVendor == 0x0424 && descriptor.idProduct == 0x223a) { + strncpy(vendor, "SMSC", max_vendor_len); + strncpy(product, "Flash Media Cntrller", max_product_len); + } +} +#endif /* CONFIG_USB_BIN_FIXUP */ + #define USB_MAX_READ_BLK 20 unsigned long usb_stor_read(int device, unsigned long blknr, unsigned long blkcnt, unsigned long *buffer) @@ -1171,6 +1193,9 @@ int usb_stor_get_info(struct usb_device *dev,struct us_data *ss,block_dev_desc_t dev_desc->vendor[8] = 0; dev_desc->product[16] = 0; dev_desc->revision[4] = 0; +#ifdef CONFIG_USB_BIN_FIXUP + usb_bin_fixup(dev->descriptor, dev_desc->vendor, dev_desc->product); +#endif /* CONFIG_USB_BIN_FIXUP */ USB_STOR_PRINTF("ISO Vers %X, Response Data %X\n",usb_stor_buf[2],usb_stor_buf[3]); if(usb_test_unit_ready(pccb,ss)) { printf("Device NOT ready\n Request Sense returned %02X %02X %02X\n",pccb->sense_buf[2],pccb->sense_buf[12],pccb->sense_buf[13]); |