diff options
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/comedi/drivers/adv_pci1724.c | 94 |
1 files changed, 44 insertions, 50 deletions
diff --git a/drivers/staging/comedi/drivers/adv_pci1724.c b/drivers/staging/comedi/drivers/adv_pci1724.c index 6c5396c24646..1201733fc9b0 100644 --- a/drivers/staging/comedi/drivers/adv_pci1724.c +++ b/drivers/staging/comedi/drivers/adv_pci1724.c @@ -1,56 +1,50 @@ /* - comedi/drivers/adv_pci1724.c - This is a driver for the Advantech PCI-1724U card. - - Author: Frank Mori Hess <fmh6jj@gmail.com> - Copyright (C) 2013 GnuBIO Inc - - COMEDI - Linux Control and Measurement Device Interface - Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ + * adv_pci1724.c + * Comedi driver for the Advantech PCI-1724U card. + * + * Author: Frank Mori Hess <fmh6jj@gmail.com> + * Copyright (C) 2013 GnuBIO Inc + * + * COMEDI - Linux Control and Measurement Device Interface + * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ /* - -Driver: adv_1724 -Description: Advantech PCI-1724U -Author: Frank Mori Hess <fmh6jj@gmail.com> -Status: works -Updated: 2013-02-09 -Devices: [Advantech] PCI-1724U (adv_pci1724) - -Subdevice 0 is the analog output. -Subdevice 1 is the offset calibration for the analog output. -Subdevice 2 is the gain calibration for the analog output. - -The calibration offset and gains have quite a large effect -on the analog output, so it is possible to adjust the analog output to -have an output range significantly different from the board's -nominal output ranges. For a calibrated +/- 10V range, the analog -output's offset will be set somewhere near mid-range (0x2000) and its -gain will be near maximum (0x3fff). - -There is really no difference between the board's documented 0-20mA -versus 4-20mA output ranges. To pick one or the other is simply a matter -of adjusting the offset and gain calibration until the board outputs in -the desired range. - -Configuration options: - None - -Manual configuration of comedi devices is not supported by this driver; -supported PCI devices are configured as comedi devices automatically. - -*/ + * Driver: adv_pci1724 + * Description: Advantech PCI-1724U + * Devices: (Advantech) PCI-1724U [adv_pci1724] + * Author: Frank Mori Hess <fmh6jj@gmail.com> + * Updated: 2013-02-09 + * Status: works + * + * Configuration Options: not applicable, uses comedi PCI auto config + * + * Subdevice 0 is the analog output. + * Subdevice 1 is the offset calibration for the analog output. + * Subdevice 2 is the gain calibration for the analog output. + * + * The calibration offset and gains have quite a large effect on the + * analog output, so it is possible to adjust the analog output to + * have an output range significantly different from the board's + * nominal output ranges. For a calibrated +/-10V range, the analog + * output's offset will be set somewhere near mid-range (0x2000) and + * its gain will be near maximum (0x3fff). + * + * There is really no difference between the board's documented 0-20mA + * versus 4-20mA output ranges. To pick one or the other is simply a + * matter of adjusting the offset and gain calibration until the board + * outputs in the desired range. + */ #include <linux/module.h> #include <linux/pci.h> |