diff options
Diffstat (limited to 'include/linux/i2c/pca954x.h')
| -rw-r--r-- | include/linux/i2c/pca954x.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/include/linux/i2c/pca954x.h b/include/linux/i2c/pca954x.h new file mode 100644 index 000000000000..28f1f8d5ab1f --- /dev/null +++ b/include/linux/i2c/pca954x.h | |||
| @@ -0,0 +1,47 @@ | |||
| 1 | /* | ||
| 2 | * | ||
| 3 | * pca954x.h - I2C multiplexer/switch support | ||
| 4 | * | ||
| 5 | * Copyright (c) 2008-2009 Rodolfo Giometti <giometti@linux.it> | ||
| 6 | * Copyright (c) 2008-2009 Eurotech S.p.A. <info@eurotech.it> | ||
| 7 | * Michael Lawnick <michael.lawnick.ext@nsn.com> | ||
| 8 | * | ||
| 9 | * This program is free software; you can redistribute it and/or modify | ||
| 10 | * it under the terms of the GNU General Public License as published by | ||
| 11 | * the Free Software Foundation; either version 2 of the License, or | ||
| 12 | * (at your option) any later version. | ||
| 13 | * | ||
| 14 | * This program is distributed in the hope that it will be useful, | ||
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 17 | * GNU General Public License for more details. | ||
| 18 | * | ||
| 19 | * You should have received a copy of the GNU General Public License | ||
| 20 | * along with this program; if not, write to the Free Software | ||
| 21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| 22 | */ | ||
| 23 | |||
| 24 | |||
| 25 | #ifndef _LINUX_I2C_PCA954X_H | ||
| 26 | #define _LINUX_I2C_PCA954X_H | ||
| 27 | |||
| 28 | /* Platform data for the PCA954x I2C multiplexers */ | ||
| 29 | |||
| 30 | /* Per channel initialisation data: | ||
| 31 | * @adap_id: bus number for the adapter. 0 = don't care | ||
| 32 | * @deselect_on_exit: set this entry to 1, if your H/W needs deselection | ||
| 33 | * of this channel after transaction. | ||
| 34 | * | ||
| 35 | */ | ||
| 36 | struct pca954x_platform_mode { | ||
| 37 | int adap_id; | ||
| 38 | unsigned int deselect_on_exit:1; | ||
| 39 | }; | ||
| 40 | |||
| 41 | /* Per mux/switch data, used with i2c_register_board_info */ | ||
| 42 | struct pca954x_platform_data { | ||
| 43 | struct pca954x_platform_mode *modes; | ||
| 44 | int num_modes; | ||
| 45 | }; | ||
| 46 | |||
| 47 | #endif /* _LINUX_I2C_PCA954X_H */ | ||
