deferred_probe_work,用来调度相应的 work func 来执行 deferred probe 动作,并提供函数接口 driver_deferred_probe_trigger。 有了driver-deferred-probe 机制后,编写驱动程序时,除了某些驱动有严格的执行次序,需要特意去定义 initcall 等级之外,一般的驱动则无需太过关心驱动间的依赖,从而在一定程度上简化了驱动开发。
kernel 检测到该驱动返回的是 -EPRBOE_DEFER,就会在过一段时间后让该驱动再次 probe。 driver-deferred-probe 机制的核心数据结构与函数是: deferred_probe_pending_list,用来记录哪些驱动被 deferred probe,并提供函数接口 driver_deferred_probe_add。 void driver_deferred_probe_add(struct device *dev) { if (...
Notify via dev_info when a random MAC address is set. of_get_ethdev_address can return -EPROBE_DEFER for NVMEM devices, return this up, so that ipqess can defer as well. Also move this MAC assignme...
Security Insights Commit Browse filesBrowse the repository at this point in the history In clk_bulk_get(), if we fail to get the clock due to probe deferal, we shouldn't print an error message. Just be silent in this case. Change-Id: I48eff4c17c48e336aafc0d4faf21e56d3e2e61be Si...
1) Is there a way to specify that "Kernel should call A's probe routine only after B's probe routine"?2) How I currently do this: In A's probe routine, I currently check if the device "b" is available. If not, I return -EPROBE_DEFER. This mostly works ok. However, I'm ...
+ return -EPROBE_DEFER; + host->vcc_aux = NULL; + dev_dbg(host->dev, "unable to get vmmc_aux regulator %ld\n", + PTR_ERR(reg)); + } else { + host->vcc_aux = reg; + } reg = devm_regulator_get_optional(host->dev, "pbias"); ...
found. In case other drivers that register encoders/connectors (tilcdc_panel) are defered it would be better to check for encoders/connectors later again. This patch replaces the returncode -ENXIO with -EPROBE_DEFER to get a working setup even if tilcdc_panel ...
Citing a pending case before a local court in Makati City, lawyers representing the Sycip Salazar Hernandez & Gatmaitan Law Office (Sycip) have asked the Department of Justice (DOJ) to defer its probe on the Anti-Dummy complaint filed against Japanese casino magnate Kazuo Okada and 25 others...
ies' Cooperation]]>Byline: Guy Taylor The Environmental Protection Agency and the office of the Senate sergeant...By TaylorGuy
Washington Defers Probe Of ACLU Complaint.The article reports on the postponement of investigation by the Washington Utilities and Transportation Commission on the alleged disclosure of consumer information by telecom companies to the National Security Agency until the federal courts rule on the vital ...