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USB: usbtmc: Set rigol_quirk if device is listed 

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@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexandre Peixoto Ferreira 2013-04-30 00:51:52 -05:00 committed by Greg Kroah-Hartman
parent 88d9b2b38c
commit c2e314835a
1 changed files with 14 additions and 0 deletions
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14
drivers/usb/class/usbtmc.c
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@ -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;