These patches implement a modification of the USBTMC
protocol to allow operation with Rigol equipment. It an idVendor and
idProduct is found on the usbtmc_id_quirk array, the rigol_quirk is set for
this device.
Signed-off-by: Alexandre Peixoto Ferreira <alexandref75@xxxxxxxxx>
---
drivers/usb/class/usbtmc.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 9c37042..fd2f90d 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -1040,6 +1040,20 @@ static int usbtmc_probe(struct usb_interface *intf,
mutex_init(&data->io_mutex);
data->zombie = 0;
+ /* Determine if it is a Rigol or not */
+ data->rigol_quirk = 0;
+ dev_dbg(&intf->dev, "Trying to find if device Vendor 0x%04X Product 0x%04X has the RIGOL quirk\n",
+ data->usb_dev->descriptor.idVendor,
+ data->usb_dev->descriptor.idProduct);
+ for(n = 0; usbtmc_id_quirk[n].idVendor > 0; n++) {
+ if ((usbtmc_id_quirk[n].idVendor == data->usb_dev->descriptor.idVendor) &&
+ (usbtmc_id_quirk[n].idProduct == data->usb_dev->descriptor.idProduct)) {
+ dev_dbg(&intf->dev, "Setting this device as having the RIGOL quirk\n");
+ data->rigol_quirk = 1;
+ break;
+ }
+ }
+
/* Initialize USBTMC bTag and other fields */
data->bTag = 1;
data->TermCharEnabled = 0;
--
1.8.2.1
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