First, make sure to turn off the watchdogs works on reverseĪ work in progress guide using Debian as the example operating system. The kernel driver only forwards MEIF encoded data from userspace to the device. 14 can be distinguished via the device info register, which should have 0x21 in its upper byte.īit 6 = reset clear, bit 7 = reset, bit 8 = current interrupt enableīit 6 = reset event, bit 7 = busy event, bit 8 = current event More information about the chip, including test commands, is at. This is done in software with a battery discharge profile. In opposit to other devices from the same series it does not measure the battery's state of charge. The bq27521/sn27521 seems to be a bq27xxx series chip specially manufactured for Nokia devices. Last but not least the FW column gives hints about any required firmwares.ĪU Optronics H397VN01 (AKA Nokia Himalaya) The driver column gives the current driver status (green = available in mainline, yellow + link = patch on mailinglists, yellow + ? = status unknown, red = not available in mainline) and the DT column gives the current device tree file status (entry in arch/arm/boot/omap3-n950.dts) with the same color usage. The Docs column describes the documentation status and, if available, a link to the datasheet. The Hardware column contains the Chip/IP-Core name and Description is a human readable description for the hardware (as short as possible). It's expected, that features marked as missing are available in the N950 specific kernel tree from Nokia. This table represents the mainline kernel status. Without right drivers, battery discharges even when connected to computer by USB (and empty battery is problem on N950 but there's flasher trick to unbrick the system). N9 is pretty similar.īasic support like booting, serial console and MMC works with right config. The Nokia N950 is a Linux based smartphone from Nokia, which has been released in July 2011 as developer device.

Videopad registration code v4.0