Ioctl put_user
Webput_user store the value val to user-space address address ; Type can be one on 8, 16, 32, 64 bit (the maximum supported type depends on the hardware platform); get_user analogue to the previous function, only that val will be set to a value identical to the value at the user-space address given by address; Webstatic int ioctl_getflags(struct file *file, unsigned int __user *argp) {struct fileattr fa = { .flags_valid = true }; /* hint only */ int err; err = vfs_fileattr_get(file->f_path.dentry, &fa); if …
Ioctl put_user
Did you know?
WebSince this is a standard Linux device driver – even though it just happens to expose a low level API to userspace – it can be associated with any number of devices at a time. Just … WebIn order to support 32-bit user space running on a 64-bit machine, each subsystem or driver that implements an ioctl callback handler must also implement the corresponding compat_ioctl handler. As long as all the rules for data structures are followed, this is as easy as setting the .compat_ioctl pointer to a helper function such as compat_ptr_ioctl() or …
Web[RFC PATCH] f2fs: expand f2fs_compr_option to allow ioctl setting compression level From: Sheng Yong Date: Thu Mar 30 2024 - 11:38:05 EST Next message: Benno Lossin: "Re: [PATCH v3 05/13] rust: init: add initialization macros" Previous message: Benno Lossin: "Re: [PATCH v3 04/13] rust: add pin-init API core" Next in thread: Yangtao Li: "Re: [RFC … Web30 mrt. 2009 · MTD: New ioctl calls for >4GiB device support Extend the MTD user ABI to access >4GiB devices using 64-bit offsets. New ioctls: MEMGETINFO64 MEMERASE64 MEMWRITEOOB64 MEMREADOOB64 MEMLOCK64 MEMUNLOCK64 MEMGETREGIONINFO64 Compat ioctls: MEMWRITEOOB64_32 …
WebThe ioctl () Requests. Management/Status Requests. Synchronous I/O Support. Asynchronous I/O Support. To use these ioctls, you need to include the following headers in your userspace program: #include #include #include . The standard USB device model requests, from "Chapter … WebCore outline of flow between user process, ioctl and trace_event APIs. Signed-off-by: Beau Belgrave --- kernel/trace/Kconfig ... User + processes can determine if their tracing events should be + generated by memory mapping a tracefs file and checking for + an associated byte being non-zero. + + If in doubt, ...
Web[PATCH v5] scsi: ufs: add ioctl interface for query request. Yaniv Gardi Wed, 09 Mar 2016 05:36:19 -0800. This patch exposes the ioctl interface for UFS driver via SCSI device ioctl interface. As of now UFS driver would provide the ioctl for …
Web1 sep. 2024 · When running a 32-bit process on a 64-bit kernel with 32-bit compatibility support, the 32-bit process will be calling ioctl () with the 32-bit version of the … philips soundbar tab7305/10WebThe ioctl() system call manipulates the underlying device parameters of special files. In particular, many operating characteristics of character special files (e.g., terminals) may … philips soundsystemWeb12 apr. 2024 · From "Starke, Daniel" <> Subject: RE: [PATCH 1/1] n_gsm: Use array_index_nospec() with index that comes from userspace: Date: Wed, 12 Apr 2024 06:03:48 +0000 try240WebNote the separate arg/argp parameters that are needed. * to deal with the compat_ptr () conversion. * to handle all incompatible commands in both functions. * to updated it before every ioctl. /* Most of the generic ioctls are handled in the normal fallback path. ENOIOCTLCMD for unknown ioctls. */. * to updated it before every ioctl. philips soundbar tab5305/96What is interesting about timeline->fences … philips soundbar tab8805Web* to the corresponding ->ioctl handler. The exception is arch/s390, where: 888 * compat_ptr() clears the top bit of a 32-bit pointer value, so user space: 889 * pointers to the second 2GB alias the first 2GB, as is the case for: 890 * native 32-bit s390 user space. 891 * 892 * The compat_ptr_ioctl() function must therefore be used only with ... philips soundbar tab8967philips soundbar update