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https://github.com/Telecominfraproject/OpenCellular.git
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7ce63a09f9
Support both old and new ioctl formats at the same time. Auto-detect the ioctl format used by the kernel. BUG=chromium:481710 BRANCH=None TEST=Work on Samus with kernel 4.4 and 3.8/3.14/3.18 Change-Id: I31d7ce5b517b4b5af8e2b617e386c3cfd3276f20 Signed-off-by: Guenter Roeck <groeck@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/331830 Tested-by: Shawn N <shawnn@chromium.org> Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef __UTIL_MISC_UTIL_H
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#define __UTIL_MISC_UTIL_H
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/* Don't use a macro where an inline will do... */
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static inline int MIN(int a, int b) { return a < b ? a : b; }
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static inline int MAX(int a, int b) { return a > b ? a : b; }
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/**
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* Write a buffer to the file.
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*
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* @param filename Target filename
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* @param buf Buffer to write
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* @param size Size of buffer in bytes
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* @return non-zero if error
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*/
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int write_file(const char *filename, const char *buf, int size);
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/**
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* Read a file into a newly-allocated buffer.
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*
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* @param filename Source filename
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* @param size Size of data in bytes will be stored here on success.
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* @return A newly allocated buffer with the data, which must be freed with
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* free() by the caller, or NULL if error.
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*/
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char *read_file(const char *filename, int *size);
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/**
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* Check if a string contains only printable characters.
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*
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* @param buf Null-terminated string to check
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* @return non-zero if buf contains only printable characters; zero if not.
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*/
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int is_string_printable(const char *buf);
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/**
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* Get the versions of the command supported by the EC.
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*
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* @param cmd Command
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* @param pmask Destination for version mask; will be set to 0 on
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* error.
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* @return 0 if success, <0 if error
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*/
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int ec_get_cmd_versions(int cmd, uint32_t *pmask);
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/**
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* Return non-zero if the EC supports the command and version
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*
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* @param cmd Command to check
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* @param ver Version to check
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* @return non-zero if command version supported; 0 if not.
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*/
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int ec_cmd_version_supported(int cmd, int ver);
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/**
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* Return 1 is the current kernel version is greater or equal to
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* <major>.<minor>.<sublevel>
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*/
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int kernel_version_ge(int major, int minor, int sublevel);
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#endif
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